So i recently put a detriot truetrac w/4.56 gears in my truck. Earlier today I decided to do a burnout at a stop sign. both tires started spinning BUT my *** end started hoping up and down real bad. Why is it doing this and what can i do to stop it?

 

Sounds like axle hop, no weight over the rear end and ****ty tires?? My brothers truck used to do it to from a stop light if he hammered on it.. Im not sure what exactly causes it but ladder bars will fix it..

 

the tires are fairly new. they are Aurora RH08 275/55/20 which i think is owned by hankook. When you say ladder bars is that the same as traction bars or caltracs?

 

its actually called axle wrap, which produces axle/wheel hop. basically there is so much torque being put on the axle, it actually twists. it'll twist a bit, then snap back straight, then twist, over and over again very quickly, causing the axle/wheels to actually bounce.

Ladder bars are just a brace that connects the axle to the frame (parallel to the frame) to prevent the axle from twisting.

 

yay more money to spend......lol oh well

 

well said AF!

 

dog, your sig is making me feel like im epileptic and in shock

 

haha

 

Yep, Spring wrap or axle wrap. Caltrac time..... $500 should cover it.

 

http://www.4x4wire.com/jeep/tech/susp/axlewrap/soa4.gif