Rear Axle Hop

[rogerblind]

My 2500 4X4 quadcab long bed is a miserable ride unloaded on unpaved/gravel roads with a "washboard" surface. It is all over the road at speeds over about 5 mph, which is embarassing, as well as annoying. Has anyone else had this problem? Is the solution just to carry a few bags of sand in the back??

 

[Steve M]

Check your tire pressure against the chart that came with your owner's manual. Unloaded you can probably go 45psi front and 40psi rear. That should help alot and when they're available, throw some stiffer shocks on the rear. I'm still waiting for some to become available for a 2X4.

 

[sag2]

I have been running 50 in the front and 45 in the rear unloaded. I also keep two bags (100 lbs) of salt as far back as possible.

 

[bighammer]

Traction bars.

 

[ttreibel]

When the pavement ends I slip it into 4x no problems then loaded or not.

 

[jrobinson2]

The T Rex system totally eliminates all of the walking side to side on washboards, it starts to take the edge off around 10 mph and basically eliminates them from 30 to 90 mph I usually keep it below 65 on gravel but I had a good piece of road and just had to see what it would do I have the stock rear springs and it is still exceptionally stable at any speed

http://www.t-rexengineering.com

https://www.turbodieselregister.com/forums/showthread.php?threadid=79066

Jared

 

[bighammer]

T first I thought the T Rex was the double axle 6x6 conversion.



I followed the link and read thru their FAQ. It does sound lika an interesting suspension system. Sort of looks like some taller coil springs and a set of 4 shocks with a couple mounts for a hefty $$$ though.

 

[Crunch]

Originally posted by sag2

I have been running 50 in the front and 45 in the rear unloaded. I also keep two bags (100 lbs) of salt as far back as possible.

Am I one of the few that is running my Michelins with the recommended 80psi? Or are these lower pressures for other tires?

 

[bighammer]

80 psi is for max rated load. Many run less for better traction, wear, and ride.

 

[rogerblind]

Thanks everyone! I am going to try dropping my pressure from the current 60 psig all around and I am going to throw a few bags of sand in the back. Sure hope that helps!