I was wondering where and how much to get and install 4.56 gears and posi sure-grip. i need the new posi because every time i want to do offroading or just burn out for fun my truck will just spin one. it sux when ur tryin to impress some1 at a truck show and you only do a one-wheel-peel?

 

Here is a link to the most durrable and trouble free unit you can buy short of a "locker".
http://www.4crawler.com/4x4/TrueTrac.shtml#TrueTrac

This is where you can buy it. You can get your gears and a rebuild kit as well.
http://www.differentials.com/

It makes all the difference. Have fun.