[Snake Eater]

Is there a way to convert my 8 3/4 diff to an LSD or will I have to change the whole rear axle the problem is that this was not the standard diff and has had all the mounting points changed to make it work this was all done by the prevous owner but I want an LSD diff for better traction.

 

[Max Keith]

8 3/4 LSD

I recommend contacting either Jegs or Summit as they both handle an assortment of Limited Slip setups for rear ends.
Most of what I have seen pricewise is in the neighborhood of $400-450. While you are at it, if they do handle the locker you need, you might also consider gears that would more match your engine and style of driving.