2nd Gen Non-Engine/Transmission Big Problem!!!!

[NHays]

Ok, here she goes... . I have been at war with my truck for quite some time now, I have a bounce that i cannot get rid off. I am posting this right now with an empty goosneck in tow, and the bounce is really bad. it starts around 35MPH and continues to about 45MPH. then it comes back as a shutter around 55 and stays to 70MPH. this is really getting hard to swallow. It fells like someone is litterally tugging up and down on the truck from the rear. It goes up and down with the speed and rythm of the wheel. I am on my 3rd set of news tires... ... let me say that again. . this is not a tire problem. nor a rim problem. I have had driveline balanced and shocks are new. The truck is fairly good when its unloaded, AKA very slight bounce but its stil present. I have raised the rear off the ground and spun the tires and had the truck up to 70 in the air, nothing seems to be a miss that way, but i cannot tell really. I am starting to think about putting new brake drums on at this piont, but I don't know why that would be the case. The brakes are smooth. No feed back at the brake peddle that I can feel. What could be the problem. I am really needing this truck. I am a nats hair away from selling this thing.

 

[NHays]

I just got done driving it again without the goosneck and it is smooth. I am going to put some weight in the bed and see what happens. to add to the first post, taking the truck out of gear while rolling had no effect.

 

[y-knot]

Sounds to me like a balance problem, not the tires but the way the load of the trailer is on the back of the truck. I had something similar many years ago, when I pulled a trailer that had little if any tongue weight.

 

[NHays]

yeah, i think I am going to have to agree. I just changed the tires today because they were out of round. I hooked up to the gooseneck and was sourly dissapointed that the bab bounce was still there. I just unhooked the trailer and went for a drive. No bounce, smooth as silk. i put 1400 lbs of steel waffers on a pallet and put in the bed, no bounce, where as before with the bad tires I had a bounce. the ride was smooth accelerating and slowing down in nuetral. i think I will hook the trailer up again and put a load on it. see what tha does. I hope everything is ok... . lets give it a try.

 

[NHays]

Ok. I loaded a 4000lb bucket on the front portion of the trailer. BAD ride. very bouncy. I am wondering if i have a worn set of springs. What are the symptoms of that. I can also roll about 5 miles an hour and make it bounce, i can make it bounce if i feather the clutch. and when when i put it into nuetral the truck bounced when i was slowing down also. your guess is as good as mine at this piont.

 

[Skydiver]

Could the "neck" of the goose neck trailer be flexing ?

 

[mfelix]

i had the same thing . it was the trailer tires

 

[NHays]

Well, I narrowed the problem down to bad tires as you think. The rear trailer tires are out of round. I dropped the neck of this trailer down about 5 inches. This is the first time I have had to borrow a trailer (mine is loaded)and the guy that owns the trailer has the same truck, well almost . I drove his truck with the trailer on it and it was smooth. I was happier though that the Toyo tires I had on before today were acctually bad, and that fixed one problem. Thanks for reading my ranting thread... . I think its kind of funny, have you ever noticed that problems with these trucks always run in twos' and threes', and they all seem to be connected, I just have to laugh now at the money we throw at these trucks.

 

[WestTN]

Your rear shocks might be the problem. One or both coulld be weak. Shocks on the trailer can also help. My RV trailer bounced quite a bit until I put shocks on it. Now it is smooth as silk.

 

[Hoefler]

I could also be the placement of your goose neck ball. If it is to far back, you are not putting your load far enough forward to load the front axle. Thus creating front end bounce.

 

[LFalconer]

I had the same issue with my 97, replaced the rear shocks with Rancho 5000's - problem solved.



Luke