I am looking to buy a 1993 Ford Mustang LX that has the 2.3L engine and a 5-speed transmission. The only questions I have is, did these cars come with posi trac rear ends and what were the typical gear ratios that came with them.
It's really doubtful. That's likely a 7.5" rear anyhow.....you could get a Traction-Lok for it from a 4-banger Ranger truck, though. The Traction-Lok notation would be on the tag bolted to the differential cover.