Rear diff

[hnbears]

ok i had a problem with my lst was only front wheel drive and i could hear grinding replaced rear diff and now it won't move it just revs up any ideals it moved before new gears

 

[taz1175]

Sounds like the OWB in the inside spur gear is in backwards....but that's just my opinion. I had the same thing happen to me with my Aftershock when I had it.

 

[bracesonmyface3.3]

+1 yaap i had the same problem to just switch them around ...

 

[hnbears]

ok i will try that but it moved before the diff was installed

 

[olds97_lss]

Did you put your rear diff in upside down? Take a look at the parts explosion and look at your rig. If you put the rear diff in upside down, it won't let the truck roll. Your front diff will turn the opposite of your rear diff. Can you push the truck by hand? If you can't, that's more than likely your problem. You can also start it up and lift it off the ground, then give it some gas... but pushing it on the floor should have the same effect.

I'm not 100% sure it's doable on the LST* rig, but I believe it is. I did it once on my old t-maxx because I had alloy diff cases that would let you screw up like that.

 

[kb.bear]

check the grub screws on the drive shaft

 

[hnbears]

reopen the rear diff and made sure was installed right they were.all grub screws are tight.i guess now i need to check the owb this truck is a big head ache about ready to throw it away lol

 

[olds97_lss]

So, does it roll when you push it? Do the spurs spin?