Help. I can't figure out the rear end in my car. Originally it came with a 3.08 standard axle. This one is a posi 10 bolt. Only numbers I found on bottom of housing are: N 1235542 And GM 18 I scrapped off drivers side rear tube and found no ID letters. Any ideas where they might be. I'm guessing gears are 3.23 from the turns. Thanks Carl
Just be careful here - if you do not know your car's rear end very well, it would definitely be a good idea to make no illusions to it being "Big", or "Wide". This will keep you out of trouble.
2012 Mustang Boss 302 #1918, Competition Orange. FGF replacement 2006 Mustang V6 Pony, Vista Blue. Factory ordered. 2019 BMW X3 (Titled to the wife, but I'm always driving it for her. So I'm claiming it) Old projects, gone but not forgotten: 1967 FB 400, original CA car. After 22 years of work, trashed by the guy who was supposed to paint it. I had to sell it. 1980 Turbo Trans Am 1970 Mustang fastback, 351C 4Bbl, auto 1988 Mustang GT, 5 speed 1983 F-150 4x4, built 302 1994 Chevy K2500 HD 4x4, 454 TBI