Any dead give always in A junk yard for one of these? Let me know guys. could i only use one out of a v8? Or could a v6 work to?

 

Engine size doesn't matter, you need the same rear diff. If you have an 8 1/4 rear diff, so does your donor, the 8.25 is visually different than the 7.25, so if you know what yours looks like, make sure it looks the exact same, I can't remember the differences off hand, I think there is a chart in the FAQ.

To find out if it has a LSD, you need to jack up both rear tires, and put it in neutral and spin one tire. If the other tire spins the same direction it has a LSD. If it spins the opposite direction it does not.

The biggest issue will be finding one in a wrecker with good clutch plates.

 

If ur going to abuse ur truck Mudding n such go aftermarket I've broke two posi units in my 8.25

 

Ahhh, that's a problem now isn't it. Aftermarket is always so damn expensive. Thanks cd! That's all I needed to know

 

I mean there good until you start beating on the truck.. I broke the spider gears in both units n I couldn't find just the gears aftermarket or nothing so I ended up getting a complete axle for the 2nd time.. 9.25s are string axles I guess n that's a straight bolt up.. It probably didn't help my cause any that I had 33s leaving posi burn outs leaving friends houses n playing tug a war with other trucks lol oops

 

theres your whole problem. no offense but that probably one of the worst things you can do to your driveline.

 

But it's so fun! Or bumper to bumper pushing