How do I tell if I have a 7.25 sure grip. i have a 69 barracuda with the slant 6 225 engine automatic tranny. THX I'm getting a whine back there. Carrier bearings need replaced??? Any ideas.
Easy jack up one wheel, put the trans in neutral and see if you can turn the tire. If so, "open." If not some type of limited slip
Spiders are always the weak link, and doing burnouts, or "doing stuff" that results in sudden shock, suck as spinning one wheel in loose gravel "on the right" and suddenly "hooking up" with pavement is a guarantee for a junk rear axle.
In my day "weld a lock" was sometimes used, AKA 57 chev. I drove a whole winter with one, that will indeed "teach you to drive" LOL