I have a 4x4 blazer with a 4.3 and a 700r4.
I blew the 8.5 rearend to little pices doing a standstill.
My problem is i cant find any of the codes in the glove box. I cant even find anything on the rear axle.
So i pulled the diff cover and i noticed i had a lsd or whatever.
What i need to know is how many different gear ratios did they run with the options my truck has?

Thanks,
Jordon