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My buddy is parting out a 4th gen and I’m looking for a posi unit. I don’t want the whole rear end from his 4th gen for a bunch of reasons, it’s just not worth it to use the whole rear end. My question is, would the posi carrier from his 4th gen rear end fit my 92 camaro with open carrier and 2.73 gear rear end. Looking to go to 3.73 and will buy the correct gears for that carrier, just looking to see if the carrier unit from his 4th gen fits my car beforehand.
If it's an Auburn though, you don't want it. The other choice would be a Torsen which would be an excellent upgrade.
The Auburn looks like this. The Torsen looks COMPLETELY different. Unfortunately I don't have a photo but you can no doubt go to ebay or google and find one.
As to the gears it's made for, you haven't told us enough about it, so I can't say.
If it's an Auburn though, you don't want it. The other choice would be a Torsen which would be an excellent upgrade.
The Auburn looks like this. The Torsen looks COMPLETELY different. Unfortunately I don't have a photo but you can no doubt go to ebay or google and find one.
As to the gears it's made for, you haven't told us enough about it, so I can't say.
It is a Torsen posi unit, which I suppose is good. Would I then buy 4th gen gears or 3rd gen gears to make this Torsen unit work in my car?
3rd gen & 4th gen gears are the same. 7½" 10-bolt.
If it's a Torsen it's probably 3 series, meaning, you could by any "standard" 3.23 and higher gears for that model of rear, and they'll work. If it's 2 series though, you'll need the "special" "thick" gears to get ratios above 3.08.
Yes the 4th gen rear has the very slightly larger ring gear that was introduced in the 7½" 10-bolt in about 86 or 87.
AFAIK all gears for the 7½" rear that you can buy new, are the slightly larger size, nowadays.
The 4th gen rear will be about 1-5/8" wider on each side than the 3rd gen. The combination of it, and 4th gen or Vette wheels, comes out to about the same width as a 3rd gen rear with its correct wheels, and locates them properly in the fenders. Most cars with most wheels that don't have the right offset, look hopelessly stoooopid, as well as the tires not fitting right; turns out looking like a Suzuki Samurai back in the 80s & 90s did when people put wheels with the wrong offset on them. Poseur and bogus. You can put fronts for 4th gen or Vettes on these cars by using about 1-5/8" spacers, coincidentally enough. It's not easy to find wheels that don't look like they fell off an alien spaceship hovering nearby and accidentally got stuck, as most newer wheels are completely different in styling from what came on these cars, but it can be done. Even some of the stock ones don't look too bad. Needless to say, anything with chrome, or the typical "blade" sorts of things that people buy these days, looks mortally goofy on these cars. Totally foreign and a mismatch. About like that hideous glass pyramid disfiguring the front of the Louvre in Paris.
Clearly, some thought to the aesthetics of an object's surroundings should be applied, before jamming a completely oddball wart onto it.
4th gen rears might have all manner of gears. If it came from a V8 one, it will have probably 3.42 or 3.73. Might have 3.23 but I have no personal knowledge of this. Idle Internet speculation on what gears are inside any particular rear axle housing is useless in any case. It has whatever gears you see when you look at the parts. There is no substitute for looking at the parts. Look at the parts before jumping to any conclusions.
