I have a '05 2500 CC SB with stock suspension and Duravis tires at 55psi front and 50 rear that I drive 40 miles a day on a road that can get washboarded, rutted, or deep in mud or snow. It has enough turns to need to slow down to 20-25 and when accelerating out of the turns the rear end wheel hops so bad that even in 4wd I can run out of road. My solution is either to get off the pedal and slowly bring it back up to speed or really get on the pedal and break the rear end loose and then the hopping stops. Neither is how I want to drive and my 1500 HD on the same road rarely did anything like this. I can repeat this on a couple of my buddies Duramaxes with different tires and shocks so this isn't something just with my truck. Some questions are: is there anything better than Ranchos for adjustable rebound control? My buddies truck with Bilsteins was worse than my stock. Would traction bars solve this problem? I tried better than 500lbs of sand in the bed and I swear it made it hop higher just with a little longer interval. I need to get down this road and a lot of other poor roads for that matter without just putting along so any real help would be greatly appreciated. Best regards.

I cant help but I will say this.
You have a truck that is basicly a one ton and is built to handle heavy loads. No matter what you do to your truck you will still have this problem.
Bilsteins have been a major improvment on these trucks reported by many members here. But it will still not stop wheel hop.

Play with your tire pressure, it can make a WORLD of difference. Try dropping the pressure 5 PSI at a time on all four. Just remember, you are reducing your load capacity and you'll need to air-up when hauling a load. Gravel with washboard SUCKS!:mad: The more your tire conforms to the raod, the less it will bounce. Also, run in 4Hi on the washboard... it will make a big difference. Four-pullin' will help prevent the rear from hopping as much. In fact, it can almost make it go away.

JMHO:)

Seems to be a torque thing. It went away on mine when I stepped up to 35's. CalTracs would help too.

I had bfg? velvet ride shackles on the back of my 3/4 ton suburban and they made a world of difference. Mine rode so much better on rutted roads expansion joints etc...I have yet to put em on my 2500 hd but I need to .You might try them.

Jacksonbase

Thanks for the replies. I'm getting good even tire wear at 55psi front and 50psi rear and I don't think that I should be going any lower for the combined dirt road and highway driving that I do and yes running in 4wd HI does help some for me, but it still seems like too much wheel hop. I've read the posts that I could find here on Cal Tracs and if they would help that could be a inexpensive solution as would different shocks I know and then larger tires I guess. And I did have the velvet ride spring shackles on an older truck and they did help the ride, but I don't know about wheel hop because isn't that from spring wrap or axel movement? Which I guess I still don't understand because I would have guessed that a 2500 would be stiffer than a 1500 and I know I didn't get this kind of wheel hop on my 1500.

you didn't have the torque on the 1500 you do on the 2500 either.

you didn't have the torque on the 1500 you do on the 2500 either.
No question about that.

I agree with Duff. Tire pressure is the only real way to fix it.

You are getting axle wrap. I have the same issue when taking loaded, unloaded, or just a couple bikes in the back. Drop the pressure and it all goes away, lets the tire float accross the ground.

It would be very inconvienent to do everyday. Possibly getting one of the high capacity offroad air tanks could help. You can fill 4 35's in about 5 minutes. If you only needed a 15-20pds per tire it could be done fast.