99 F350 dana 80 posi

[jasult]

My E99 DRW F350 with dana 80 POSI or LS? It has a very low speed hop or shudder when starting off in a turn. I had the driveshaft out and did the hanger bearings and u joints but still get the shudder as starting off in a turn. No problems or noises on highway. Is this just the posi or something else. I just picked up the truck few months ago and going through it. I just replaced the torque converter as it had the E99 noisy converter

 

[suprhlr]

Drain the fluid and add 8oz of friction modifier when you fill it back up

 

[gnxtc2]

The Dana 80 might have a Detroit Locker in it, if so what you're hearing is normal.

Billy T.
[email protected]

 

[jasult]

I checked the code on door and F2 is 4:10 LS so I will try the friction modifier