I'm surprised that was the problem. I thought the same thing when they put new shocks on my truck and the problem went away. Come to find out it was a cool day. As soon as I drove more than 200 miles on a warmer day it was back.

Come back and post a reply after a few days of driving and let us know if it fixed the problem for sure.

 

Hopefully it won't come back once those tires wear in :wink:

 

That didn't last long! Drive the Truck after they put the tires on and parked it until yesterday and then it happened again, the BOUNCE!

I only live 3 miles from the shop where I got the tires at and never got it up to the speed where it does the bouncing so I thought it was fixed! Boy was I wrong.

I am at a loss of words, ideas, and thoughts!!!!!!!!!!!

Everything that I have had done to the Truck has not helped it one bit, not even fazed it.

The only other thing I know to check would be the brake drums on the drives, as I have already changed the ones on the steers.

I had one guy tell me that it could be due to not have a Transmission Support Spring, the bracket is there but not the spring. I talked with him, and he told me that they came out with these to try and keep the bouncing down on spring rides.

He looked and siad the the brackets were there, but my spring for the transmission support had been removed for quite some time. He told me that it really helped with a 15 speed transmission since they were longer than the 10 speed.



I am in need of help here on advice and suggestions of what to check next. I wouldn't be so positive that this is something that can be fixed if it was doing this when I bought it last Oct and been driving it 5 days a week since then.

This just started 2 to 3 months ago and has gotten steadily worse.

 

Man I'm surprised you haven't burned that thing yet LOL. I would definitely get that trans spring fixed it's probably not your problem but it'll help your motor mounts, especially when you're starting out in soft dirt. You should get your motor mounts checked also. I'd be tempted to put a Cabmate air ride on it so you don't feel it as much and call it a day.

 

Had the Truck jacked up and spun the tires, and found no bouncing up or down? About the only things that I have not checked out are the brake drums, and the u joints on my drive line..

This bouncing is getting worse, so whatever it is will eventually show up. I hope that it is found before it causes something else to tear up.

I had to check all of the bolt and nuts on my Truck as it has bounced up and down to a point that it has loosened some of them.

One other part of the puzzle here that I don't think I have posted yet, and that is that when I am slowing down from 45 on down, it really bounces up and down, almost like I ran over a small tree limb?

Remember this does not do this when I am hauling a load, only when I empty or bobtailing

Would the U-Joints on my driveline cause this, and what is the best way to check them?

Trading my Truck in or getting a newer one is not an option right now, and if this was doing the bouncing when I bought it, I would have shot myself for being so stupid.

Prior to buying this truck, I took it to 2 different mechanics that I trusted (and still do), and had them go over this truck with a fine tooth comb to check it out.

Knew what kind of repairs would need to be made and made my offer on this and bought the truck Sept of 06.

At no time did I expect it to ride like a Air Ride, and this bouncing has started about 3 months ago and only gotten worse, so I know it is something that can be fixed if only it can be found.




Any suggestions or advice would be greatly appreciated.

 

I think the u-joints would cause more of a vibration not a bounce. I wonder if there is a cracked or broken spring in the suspension.

 

All my U-Joints were replaced and the drive shaft was balanced. 6 new shocks and new steers. Front end checked out 5 times.

It sounds like you have the exact problem as I do.

 

OK lets get some details here. What kind of spring suspension do you have? What is your wheelbase? Does it do when you are actually accelerating or braking or just when the truck is coasting? and are your wheel hub piloted ,stud piloted or Dayton? Sorry if you already gave out this info but I can't remember.

 

special k Posted: Sat Jun 02, 2007 7:38 pm Post subject:

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OK lets get some details here. What kind of spring suspension do you have?

Reyco 4 Spring Suspension.

What is your wheelbase?

Not sure the correct way to measure this? Any advice and will measure and get back with you on this on.

Does it do when you are actually accelerating or braking or just when the truck is coasting?

It does it at 44 to 51 and 65 to 70 either accelerating or braking, but it does seem to be worse when braking with the jakes on.

and are your wheel hub piloted ,stud piloted or Dayton? Sorry if you already gave out this info but I can't remember.

Bud Wheels, Ball seated.

One thing about the tire that I had replaced is that everyone that saw it told me it had been run low of air was the reason for the abnormal wear.
This was not true as I keep my tires checked 2 times a week on Tue and Sat. This tire was on the right front inside drive, and the tire right beside was fine, so I think maybe it was just a bad tire.

Nothing against the shops that I have took it to, but nothing has seemed to help, but lightened my wallet.

If anyone has any other suggestions for me to check out, please let me know.

 

To measure your wheelbase go from the front axle to the middle of the spread on the drives. When they checked the truck out did they jack it up by the frame so the suspension was hanging? I would do that and then check the equalizer rocker between the springs on the rear. I know on reyco trailer suspension the bushing wears out of them and you can get wheel hop. Make sure the spring pad is still there and not worn through.