Hello all,
I am building a Dodge Dakota. I have installed a E Body 8 3/4. It has a 489 case, that came out of a 73 D150. It is a sure grip. I had someone put a Richmond 3.90 gear set in it.

With the truck up in the air both tires will spin together in the same direction as one would expect. When trying to do a burnout I am only getting one tire to spin. I'm assuming the clutches are wore out, but I don't know enough about them. Could it be something else such as axle bearing preload? It is the only thing I can think of other than the clutches are junk. Is there a way to check the clutches without taking it apart?

I've not delt with the rearend gears much, and with the local guys wanting an arm and a leg to fix what I have I think I may try it myself. If the clutches are a pain, I may just install a spool.

Thanks in advance,
Sean