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i need some help fellows. i installed a bilstein t-rex system with leaf pac about 1200 miles ago. i run 315 70 17 tires with 35 psi in each. i do not have a better ride with the t-rex, i think it may be worse. i have tried 220 psi in front 220 in rear (shocks) and 200 psi in front and 200 in rear. 35 to 50 psi in tires and it rides so rough over expansion joints and bumps on the highway that you would spill your coffee everytime if it was close to half full. i can not even tell that i installed the system. maybe over speedbumps at 25-30 mph you can tell, but i don't do that. i never tried it with the stock setup so it may have done just as well. the truck feels more stable around corners on flat surface but you can feel every single bump that you hit more so at the slower speeds.



i know a bunch you have the system by now, how about some reel truth , do you like it, would you buy it again, i need some feedback, the last thing i want to do is take it off and send it back, that takes too long. this stuff costs a lot of money and i want some results.



my wife did not know that i put the system on and i took her for a ride with my new baby (about a 60 mile trip both highway and city). she said "your truck is harder to get into (about 2 inchs) and why does it ride so rough now".



grap!
 
Sorry to hear about your dissapointments. Have you talked to Kent? He probably knows more about what's wrong than we do.

I think the T-rex guys are off for the next week racing the Baja 500. Let us know how things work out. I hate spilled coffee!

Greg
 
This is an off road suspension. . Did you really expect to gain a lot on the street?? I doubt that the company will take the system back. If you dont like it that much. . Tell me what you want for it:D :D
 
I would highly recommend that you talk to Kent. I'm sure that he will have some ideas on what can be done to make it ride better for you. The folks down at T-REX are great and extremely interested in making your system work for you.



I have the King Shock set up and I run my front tires at around 34 psi and rear tires at around 32 psi. A few pounds can make a big difference depending on the type and brand of tire you have.



I don't know a lot about the Bilstein set up, but I know that with the King set up, you have several different options on the front coil springs, the amount of leafs you can put in the rear, as well as the valving of the shocks. As a result, there is almost and infinite amount of combinations that you can come up with depending on the type of driving you do and how your truck is set up.



Hang in there. I love my T-REX system, and so does my wife. I would purchase it again in a heartbeat.
 
I've just installed the Fox system a couple days ago and so far am getting used to it. Now I feel the small bumps I never felt before, but not the big stuff I used to avoid. Kind of an even trade off, at least so far. Almost all of my driving is empty bed on freeway. So it's a little bit more bouncy, but not in a bad way. I do notice the slow small bumps, but less on the freeway. I'm headed to Baja in a couple weeks, and we'll see the difference there. We have some bad roads here, but not THAT bad. I'm sure once I get off the paved stuff, it'll make a huge difference.

Prior to purchase, Kent said they'd tune it to your specific driving. Give him a ring and talk to him. Right now he's gearing up for a Baja race, but if you can catch him, I'm sure he'll be able to make you happy. That's the whole idea after all.

TP



I may wan't mine adjusted later on, but I can't fairly complain until I've had it on some nasty roads that we'll be taking frequently in the future... . Have to find the happy medium.
 
If you are not satisifed, call Kent. He will make it right. With my system, I know I had a money back gaurentee. Now only if my truck was running... . (4 VP 44 died)



Also, you have to realize as stated above, this is an OFF ROAD suspension for some serious use. I am sure they can tune for highway expansion joints if you so like, but keep that in mind.



ALSO - when you say 220 PSI - is the Bilstein system not a Nitrogen charged system? If you are running AIR instead of N2 you will see a big difference as well.



Jason
 
I'll have to be my own judge (and a tough one at that).



I just ordered my T-Rex Fox Racing System a few days ago. The first thing I'm gonna do when I put it on, is go 50 mph over circle tracks in the alfalfa fields on the farm (Kent said I could do this, and the Fox System would eat it up). You literally have to go 5 mph over circle tracks right now in the Dodge. If it is here by this week I'll also get to test it at the Moses Lake Dunes this Memorial Day weekend. IMHO if it pleases me, I think it would a lot of other people. I'm a "BIG" stickler when it comes to my truck.



I'll give you guys an update when I test it- 3rd Gen No Engine/No Trans.
 
Like mentioned above, it can work. It either needs some valving changes or something is put together wrong (mistakes do happen). I build a lot of shock set ups for snowmobile racing (same thing but smaller) and you'd be amazed how big a difference a couple different valves can make.
 
I have been closely following the t-rex posts because I intend on purchasing a set mainly for washboard backroads. So I appreciate candid assessments of the system - the good and the bad.



From following the earlier posts I have a couple of observations to offer.



First, T-Rex is willing to spend time to see if they can tailor the set up to your driving needs. This means you need to be candid about what driving conditions you would like the system to be used for. One "size" doesn't fit all.



Second, the T-Rex seems to work better at higher speeds than most drivers typically drive for off or back country roads.



Thirdly, T-Rex has spent considerable time trying to adapt the system, which was meant for baja conditions to the "expansion" joint phenom. From what I read and understand they only had limited success in valving the shocks for expansion joint driving.



Forthly, I hate expansion joints. The ones from Bozeman to Three Forks use to threaten to beat my poor old LandRover to pieces. Thank God I don't have to drive much around the engineering marvel known as expansion joints. :rolleyes:
 
just got truck back on road. installed DTT Trackbar, DTT Link arms, DSS, adjusted #11cam plate full forward, Installed 3kGSK, 4

" exhaust, installed T-REX Bilstien with rear mini leaf pack. Truck runs real good rides rough with the new suspension. most of my driving is on highway. Alaska roads are pretty rough not like Baja but they are rough, lots of spilled coffee. installed system for better ride on Alaska roads, and i'm tired of changing shocks every 6 months or so. I'm gonna drive it for a day or two and see if Kent can help soften ride. Have a trip from Palmer Alaska to Trinidad Co. and back on the 1st of June. we will know the ride much better when we return. I may detour through Ca to see Kent if needs be. T-rex seems to want to please so will work with them to make the rig work.

97 2500 4X4, lots extras... ...

keep the shiny side up.
 
I'm just finishing the install of the T-Rex Bilstein, mini-pack. I haven't really tested it yet.

AKTrapper, where did you get the shocks serviced?

I guess I will check at the airport tomorrow.

An airplane that I used to fly for the State used nitrogen to cool the FLIR lens, and we had a supply then, but that was another lifetime ago!!!

Bob
 
traildog is right. you need to be very candid about what kind of driving you do.



i think the bilstein trex for expansion joints has been overhyped. in my honest opinion, if you're solely looking for a cure for street only expansion joints, then the trex bilstein may not be the right product.



like others have said it's an OFFROAD setup that HELPS with expansion joints shudders. it DOES NOT get rid of them. it has made them less annoying and painful for both me and my wife though. stock was absolutely unbearable. i do "mild" offroading too and there it helps tremendously and for that it's inexpensive.



so let's be careful describing it. if you're running solely on the streets, weigh all your options.



btw, kent will tell you the same thing.
 
I never released the nitrogen from the shocks when i installed them so they didn't have to be charged again. the ride is definitely better just not real better. I'm sure Kent will be able to help. I may need to change the valving on them. I do carry a Predator V plow on and off in the winter and he said i may need the heavy duty coils, since i seldom carry it we decided to use the standard springs. I'll see what they can do for me.

kirk sanderson

97 2500 4X4 keep the shiny side up
 
I think from reading here is that some of you expected apples and you think you got oranges. In reality you got apples but they were not what you expected. It is hard to understand how you could spend upwards of $3k on suspension and it not be better all around. Well it is better all around but you will have to drive it a little harder. If you thought that in buying it you would not feel the expansion joints, Well in my opinoin, you will feel them but will have more control after the initial impact. My truck in stock form hits these joints and litteraly comes aside. Rear end comes real loose... . Scary! With the Bils setup you will have more control over the loose and small impacts. If you plan on driving faster off road then the Fox system is for you. The fox system is more extreme in its abilities. The Bils is more mild mannered but equally as able to keep control of your truck. Guys, the whole idea here is to keep the tires on the ground of an 8000 lb truck. Then to try to keep them from moving too fast up and down. Expansion joints are only a small part of daily driving an only last for 1 second. I would focus more on how the truck corners at speed now. How much safer it feels under hard deceleration. How it handles on mountain roads with 15,000 lbs in tow going down hill. That is what this type of system is for. Not trying to mellow expansion joints.



Again this is just my humble opinoin



Greg
 
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We dont have expansion joints in Alaska. Just lots f bumps and frost heaves and the pavement equivalent of washboards. I'm not saying I'm not pleased with my system. I've driven every kind of road you can imagine from running back through the river to Knik glacier to all over unit 13 caribou hunting swamp buggy trails, to the haul road to prudhoe bay. I'm just saying the system needs to be tweaked a little for my truck. Every rig is a bit different. I only have 40 or 50 miles on it so far. I'm sure i will be happy with it, it is much more stable. I've hauled up to 30k trailers with my truck ( my equip trlr is 8500 empty) so soon i will see it with a load. I'm looking forward to the trip to Co down the Alcan (Cassiar route, the northern Baja). will get a good shake down.

97 2500 4X4 keep the shiny side up
 
Originally posted by blake underwood

I'll have to be my own judge (and a tough one at that).



I just ordered my T-Rex Fox Racing System a few days ago. The first thing I'm gonna do when I put it on, is go 50 mph over circle tracks in the alfalfa fields on the farm (Kent said I could do this, and the Fox System would eat it up). You literally have to go 5 mph over circle tracks right now in the Dodge. If it is here by this week I'll also get to test it at the Moses Lake Dunes this Memorial Day weekend. IMHO if it pleases me, I think it would a lot of other people. I'm a "BIG" stickler when it comes to my truck.



I'll give you guys an update when I test it- 3rd Gen No Engine/No Trans.
;)

It eats pivot tracks great as long as the mounds on the sides are less than about 4" high and you keep the speed over 25 mph, the first time I cleared the center track at about 50mph I darn near slid into the center pivot :D at 15mph the pivot tracks are still brutal :(

I have no experience with the T-Rex Bilstien systems but here are my opinions on my King setup.

I think if you buy these systems primarily for on highway ride improvement you will be a little disappointed, my truck still has the rhythmic bounce on the concrete expansion joints but it has improved it and narrowed the speed range where it occurs. The on highway ride is definitely improved on my truck but the changes are more subtle than the off road improvement and are most noticeable on a long drive. The thing I noticed most on the highway was that the truck has a very nice "feel" when driven hard, completely different than any truck I've driven before, very firm and controlled without the harshness you get with the firmer settings on the rancho's. With my system I see some small improvement at low speeds but it really doesn't start to work well until over 25 mph.

Kent is great to deal with and is very willing to do whatever it takes to make you happy, he re-valved mine to improve the highway ride for my wife and then re re-valved it back nearly to where it was before to get a bit more control with the camper on :)

I would advise people to buy the T-Rex systems for the off pavement performance first, the on highway handling second and take the on highway ride improvements as a bonus.

Jared
 
Originally posted by Greg Boardman

Expansion joints are only a small part of daily driving an only last for 1 second.

Greg



Unfortunately, those 1 sec episodes make up most of the day for me. The bucking/hopping on the freeway is the worst part of the handling on my truck - heck, it's a 7300 lb truck I don't expect it to handle like a BMW.



Brian
 
Gents,



I think what our customers have said is exactly correct. I've said it before in other posts and I say it to every customer who wants to know what his results will be before he orders a system:



We don't know how our suspension will work on your truck in your environment. We have data from hundreds of customers and we try to recount what they say as accurately as possible. These forums are also excellent for information. The point is that results vary. Trucks vary. Roads vary. Driving styles vary. Most importantly, expectations vary.



We don't push this stuff as the solution to all life's problems.



In fact, we don't push it at all. I'm a terrible salesman because I'm honest. I don't B. S. anyone into buying our stuff. I know what our suspension's capabilities are and with two trucks side by side and the same piece of terrain, I can clearly demonstrate the vast differences between OE performance and T. Rex performance.



In a nutshell, here's what T. Rex does:



We offer a suspension that immensely broadens the capabilities of large solid axle trucks. We take a truck that when stock, must creep along at a snail's pace off-road and enable it to go much faster over the same terrain without damage or discomfort. When a customer reports that the truck feels similar or only mildly improved on the pavement, I consider that a triumph of engineering because we've simultaneously multiplied the truck's capabilities off-road.



These trucks weigh nearly 8000 lbs. so they've got to have really heavy springs just to hold them up. In addition, they've got to be able to carry up to 4000 lbs. aft of the cabin. To do this your coil and leaf springs must store incredible amounts of energy. Springs with lots of stored energy are not soft. We change them around a bit to make them more progressive, but they still have to do their job. While the spring controls weight transfers, load height and cornering forces, the shocks control the springs. The springs determine to what point a given amount of force will move your axles, the shocks determine the time they take to get there. Because Heavy Duty truck springs must be so stiff, shocks can only do so much to control small pavement bumps. For the street the shocks must hold the springs steady for safety and control, yet allow the springs to move as much as possible when little bumps are encountered. When they're new, OE shocks work great for this - especially at lower speeds.



T. Rex suspension is trick because it permits your axles to move much farther, so bigger bumps can be absorbed without bottoming out. In addition T. Rex shocks are "smarter" than OE because they can hold the truck steady over large, rolling pitch changes or cornering moments then instantly respond to rapid, sharp impacts such as continuous washboard or a series of deep pot holes. For these situations, most will contend that T. Rex suspension works better than anything available.



The rougher the terrain (paved or not), and the more aggressively you drive, the more you will be impressed with our high performance suspension.



That's why we don't tout our product as "The Ultimate Suspension For Driving Grandma to Church. "



That's why our website and all our marketing shows photos of a black 2003 Dodge Ram going 80 mph six feet in the air and not puppy dogs, kittens and infants wearing pastel colors while frolicking around a Volvo station wagon in a grassy meadow.



Our suspension is big and gnarly and it's made for people who like that sort of thing. My wife was driving the truck during those jump photos. She's tough and likes stiff valving and mean terrain. From motion sickness, she vomited four times during our last Baja 500 prerun session because she was trying to program skull and crossbones danger symbols into the GPS while we were hammering out of the mountains back to Santo Domingo on some of the nastiest road you can imagine. That's the kind of people we are around here and that's the kind of company T. Rex is. We are off-road, four wheel drive, big and serious. We aim to please and will work ceaselessly to care for our clients, but our stance is HIGH PERFORMANCE OFF ROAD, and nothing less.



Our suspension is good on the pavement, but it comes into its own off-road. Unless a potential customer states that the pavement they frequent is "very rough" - which means to us - lots of bigger bumps and pot holes like off-road - we don't try to tell them that the benefits will be worth the cost - unless they factor some other T. Rex benefits such as that our shocks are fully rebuildable and our parts and springs are guaranteed for life, cool aesthetics etc.



It's kind of like horsepower.



Are you the kind of person who likes 500 + hp? Do you need it? Can you use it? Some people do. You know who you are, Bad Boys! haha! Well, you've tried to get that 500 hp while still keeping your truck, "drivable" - meaning it's still has OE driving characteristics during "normal" use. You don't want a clutch that takes all your force to push in. You don't want a turbo that kicks in and snaps your neck (or your wife's!) when you're just leaving a stop sign. You don't want to smoke the tires when you're just getting groceries. You want the engine to be reliable, controllable and "civilized" - but you WANT that 500 hp on tap when you NEED it - like when the kid in the $5000 Honda Civic with $20,000 worth of bolt on accessories and an exhaust as big as a coffee can shows up next to you at a red light, revs his motor that sounds like a lawn mower with an blown head gasket, and gives you "the look"...



So how do you do that? How do you keep your truck feeling stock at lower speeds but effectively _broaden_ the range of your truck's usable power - to the point where it's at least doubled - the 500 hp range? It's not easy; it takes some serious work. Ask anyone who's succeeded.



Suspension? Same thing.



To get the kind of performance we're offering while still being civilized on the pavement is not easy. We're offering a suspension system that can, over certain types of terrain sometimes triple or even quadruple speeds over stock.



Our Bilstein system was designed to offer the max improvement on the pavement, meaning the expansion joint and small bump issues have been addressed to the greatest extent possible. Bilstein learned so much from us that they've changed the HD Dodge valving on their 5100 series shocks to match as closely as possible the performance we've achieved with the 7100's - because our profile works better than what they were offering previously. Few companies are willing to spend a year of R and D on one model to make it the best it can be. We don't revalve Bilsteins. For their intended purpose, they're as good as they can be while still remaining safe.



The Fox and King systems we sell can be made more firm, but not softer. We sell a standard valving to start with that works well in all situations. If we're absolutely certain about a customer's expectations - meaning competition or 50% off-road is the intent -we will custom valve before they ship. Otherwise we prefer to start off with a relatively plush valve profile, the softest possible while still remaining safe - yet it still rages off-road.



Is 500 hp for everyone? Probably not. Just getting there is a hard to do.



Is T. Rex suspension for everyone?



We can't determine if the neighborhood bump that spills coffee, makes wives complain and babies cry will, with the addition of T. Rex suspension, magically go away. We haven't driven over every bump in America in every truck under every possible condition - so we don't know. Hitting the same bump, you may spill your coffee while driving a $300,000 Trophy Truck that has 30" of wheel travel - and you may be able to drive over that same bump at 100 mph in a clapped-out Datsun B-210 while performing eye surgery. We don't know.



I've said this before in other posts and I will say it again here: If you're just a boulevard guy, unless you've got plenty of money, don't buy our suspension. With T. Rex you'll be getting F-18 performance when all you really need is a set of Ranchos that you can also use on your '72 Bronco. It would be a waste to put our product on your truck.



We're currently selling more suspension than we can produce and the waiting period is getting longer and longer. I would rather have fewer people who are happier with our product because it exactly met their expectations than masses of people with our product and a couple here and there who expected a greater performance gain on relatively smooth roads.



No matter what T. Rex product you buy, it's the best there is for hard core, serious adventure and rough use.



That's what we designed it for; that's how we sell it. For everyone else there are plenty of lift kit companies who will sell nice cosmetic lifts for your trucks. How will they ride? Don't know. That's not our thing.



For guys who only drive the street and are interested in T. Rex? I suppose it comes down to a question of personality - how gnarly are you?



If you're the type that _needs_ 500 hp for commuting, then you're probably also the type that _needs_ T. Rex.





:D :D :D :D :D :D :D :D







Cheers,



Kent
 
Like I said I do like my system. All the other stuff I used before just did not hold up. This system is an enormous improvement. It would be nice to have the best of all possible worlds, but that is not possible. Some people live in their own little happy place. I don't. I'll take the slight roughness on the slow bumps etc. because I do drive a heavy truck that hauls heavy loads and out works most rigs out there. I may not have 500hp (350-400?) BUT I LIKE MY TRUCK NOT BEING STOCK. I like having the best system on the road. this system will be a good system for Alaskan / Alcan roads. I work my truck hard and this system should last me till my truck is worn out. 200k on it now and still adding stuff to it so it will be around for some time. Final word: I'm happy with my T-REX.

Kirk Sanderson, 97 2500 4X4 lots of extras... ... ... ... ... ... ...

PS. Kent and the gang have been excellent at taking calls and helping answer all questions. Thanks Kent and Co.
 
Originally posted by kentkroeker

Our suspension is big and gnarly and it's made for people who like that sort of thing.



We aim to please and will work ceaselessly to care for our clients, but our stance is HIGH PERFORMANCE OFF ROAD, and nothing less.



our shocks are fully rebuildable and our parts and springs are guaranteed for life, cool aesthetics etc.






Those 3 things just about sum it up for me. I plan to get T-Rex on my truck as soon as it gets here... as long as the waiting list isn't 6 months out by then. ;)



It's nice to see there are still people out there who are more concerned about quality and striving for excellence toward a single purpose than trying to please everyone and make more money by pinching pennies here and there. Simply the fact that Kent's system is NO COMPROMISE, warranted for life, and does exactly what I want is enough for me to say screw the factory warranty, because I know whatever issues I have, if any, will be taken care of.



Man, I sound like a commercial and I haven't even bought the thing yet. :-laf
 
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