NBM99SS

iTrader: (33)

Im having a issue ever since I installed my 9 inch. Whenever im driving, and speed makes no difference really, if I stab teh throttle the car does kind of a S. It will jerk my rear end of the car to the left and then straighten back out. Doesnt seem to do it under WOT more just while highway driving. Any gear also. Any ideas?

GregWS6&z28

iTrader: (8)

hmm. no idea. just a shot in the dark but did you reinstall your panhard rod?

jmm98LS1

iTrader: (28)

I'm assuming you have a locker in your 9".......

COOKIE MONSTER

iTrader: (5)

Full spool?

1CAMWNDR

iTrader: (21)

Sounds like you have a Locker and your rear is not lined up perfectly in the chassis.

addicted2fun

+1 for the locker

GregWS6&z28

iTrader: (8)

most car jerks are mustang owners

NHRAMAN

iTrader: (1)

NBM99SS

iTrader: (33)

Yessir
Correct Detroit Locker
Locker

So its the locker then? Im ok with it if thats what it is. I have just been checking, and rechecking anything I could have messed up on the install. What could I do to try and realign it? Loosen everything and set it on the ground?

1CAMWNDR

iTrader: (21)

If you have adjustable LCAs you can tweak the rear so it sits square in the chassis if it is in fact off a bit.

jmm98LS1

iTrader: (28)

Even if the rear is perfectly centered, it's still going to jerk like that......that's just the nature of lockers. I've got a detroit locker in my 9" and a richmond locker in my '85 swb. Both are manual trans and both do the little sideways jump when shifting under part throttle but go perfectly straight at WOT. The faster you shift the less "side jumping" you get. Locker + manual trans on the street is not for the faint of heart, they get kinda hairy at times......but I love it

1CAMWNDR

iTrader: (21)

Maybe the 31 spline Locker is a bit lighter because mine does that very rarely.

jmm98LS1

iTrader: (28)

Some people say that real good shocks and a good rear swaybar can greatly reduce the problem......

NBM99SS

iTrader: (33)

Ya Ive noticed that too. When Im at WOT it goes perfectly straight, but under normal drivingis when it does it most. Thats all I really needed to verify was that it was the locker doing this to me. Appreciate the help from everyone