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5th Wheel suspension upgrade (Update)

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Choosing a camper or TT. Heavier than advertised.

A month or so ago I was asking for ideas on suspension upgrades for my HitchHiker 5th wheel. After reviewing the responses and getting some good ideas from the TDR Towing forum, I discussed my needs with a long time custom trailer maker in the Minneapolis area and brought it in for the work.

They installed 8K Dexter Torflex axles with disc brakes and Nev-R-Lube hubs. I also went with the Dexter hydraulic brake actuator so everything is Dexter. The Torflex are independent suspension and because of the self dampening, they need no shocks. I also had them raise the trailer 3 inches for more bed clearance and level ride.

I just got my trailer back today and am very happy with the results. I only towed it about 50 miles for testing but the upgrades made a big difference in ride over bumps and the brakes are really something else. No comparison to the old electrics. I set my integrated controller for Electric over Hydraulic and it worked perfect.

My previous suspension had 7K axles so this is an upgrade that will give me a little bit more capacity. My Goodyear G614 RST "G" rated tires were over 5 years old so I had them put on a new set of G614 RST tires while they had it in the shop.

It was fairly expensive but the way things cost today, not unreasonable. The suspension upgrades, axles, brakes, controller, 3 inch raise and labor was just over $7000, the tires with mounting and balancing added another $1563 so the whole thing came to $8618 before taxes.
 
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If we sell the house and go full time, I think we will have the underside of the new trailer remanufacturered also by MorRyde. SNOKING
 
If we sell the house and go full time, I think we will have the underside of the new trailer remanufacturered also by MorRyde. SNOKING

You will be happy if you do so! They will weigh your rig to determine if 7K or 8K is the proper size. I think the BigHorn that was there went 7K. Not sure if it was as big as yours.
 
They installed 8K Dexter Torflex axles with disc brakes and Nev-R-Lube hubs.



My previous suspension had 7K axles so this is an upgrade that will give me a little bit more capacity. My Goodyear G614 RST "G" rated tires were over 5 years old so I had them put on a new set of G614 RST tires while they had it in the shop.

You will really like those 8k axles. I am wondering if you went with 17.5 tires and wheels or did you stay with the 16"? If you stayed with the 16" any idea on the capacity of the wheels?

I am looking at a new Texas Pride equipment trailer rated 16K with 8K axles but I see they have 16" tires rated 3960 lbs. and not the 17.5's I am not sure that is a good idea. They sell factory direct so that will give me a trip to Texas if I go that route:D

Nick
 
You will really like those 8k axles. I am wondering if you went with 17.5 tires and wheels or did you stay with the 16"? If you stayed with the 16" any idea on the capacity of the wheels?

I am looking at a new Texas Pride equipment trailer rated 16K with 8K axles but I see they have 16" tires rated 3960 lbs. and not the 17.5's I am not sure that is a good idea. They sell factory direct so that will give me a trip to Texas if I go that route:D

Nick
I kept the 16 inch aluminum wheels which are rated for the 110# pressure of the Goodyear G614 RST. They are the original wheels and came with Goodyear G614 RST when I bought the trailer new. The tires are only rated at 3750 each so I have a maximum capacity of 7500 pounds per axle.

The trailer weighed 13500 on the axles so I decided to upgrade to the 8K axles. I didn't want to change tires because the
Goodyear G614 RST has a R speed rating, good for 106 MPH. The trailer was pretty well loaded up for travel when it weighed 13500. The tires give me 15K maximum and it's more than I will ever need and don't have the ability to exceed axle capacity like before with 7K axles .
 
Nice setup!

At 13,500 on the axles the torflex should ride very nice.



I found a couple sites that list it as a 126R tire; however, all the Goodyear stuff I can find says it's a 126L.

The sidewall is the best place to be sure.

Does not matter what the sidewall says, as Goodyear states for RV use the max speed is 75 MPH. It is in the GY link I provided. SNOKING
 
I do not know were you got the R speed rating. The G614 in recent years has a L (75 MPH) rating.

http://wingfootct.com/products/rv/G614.pdf

Snoking
I found several places on the Internet that said R speed rating but the Goodyear site does say L. That's what I get for trusting the all knowing web!

I just went out and looked at my sidewalls to be sure and they are stamped 126/123L so the L rating is correct. I don't tow over 75 either so I'm still good...
 
Does not matter what the sidewall says, as Goodyear states for RV use the max speed is 75 MPH. It is in the GY link I provided. SNOKING

Actually the sidewall will always superseded any printed materiel. The sidewall is what that specific tire was rated for when it was built. Tire ratings do change but that doesn't mean already built tires have their ratings change, i.e.. my 245/70R19.5's are a 133L but they now build and advertise them as a 133N. I cannot use mine at N rated speeds, regardless of what information I find on the internet. The sidewall is what matters.
 
I found several places on the Internet that said R speed rating but the Goodyear site does say L. That's what I get for trusting the all knowing web!

I just went out and looked at my sidewalls to be sure and they are stamped 126/123L so the L rating is correct. I don't tow over 75 either so I'm still good...

Yeah, only Cummins12V98 sneaks over 75 MPH once in a while and it is like a Craftsman 5HP shop vac is sucking fuel out of his fuel tank.

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