Question about rear end

[Positraction Action]

My nova has a 12 bolt posi in it and the other day I wanted to burn my tires off and I went to do a brake torque and just one tire spun, but when I let off the brake they both broke lose, I rode around some more thinking maybe it just needed to be warmed up but it still does it. Anyone know why that could be.

[Beau Herbst]

with posi both tires don't always spin

[bohn]

If its a stock GM rear, carrier and all. Thats pretty common, just about evey vehicle i have had would do that ever now and then. Even my truck with a auburn carrier in it, still did that.

[nos2go]

this is how you check it..and you can shim the clutches so it holds better.
http://hotrod.com/techarticles/42584/index.html

[Beau Herbst]

posi or limited slip puts power to the side with the most traction unlike a open a eaton locker will put it to both depending on speed the only way to make it tru posi is to do a spool or mini or weld your spiders like a redneck

[Positraction Action]

Thanks for the replies, that helped me out. I was kind of worried i broke something cuz it hasnt happened in the 2 1/2 yrs ive had the car.