84TAVeRT Posted August 14, 2008 Report Share Posted August 14, 2008 i need a 3.70 third member for my 521... where should i look... what year and options had the 3.70... would like posi too :) thanks, Chris Quote Link to comment
datzenmike Posted August 14, 2008 Report Share Posted August 14, 2008 ... would like posi too :) thanks, Chris :lol::lol::lol::lol: who wouldn't! The '84 and up 720 2wd standard transmission had 3.70 H-190-A differentials in them. Automatics were 3.889 still a good ratio drop. There were no posi rears from the factory and the chances of finding an aftermarket one actually in one is very slim. They would never be thrown out with a truck because of their price. Quote Link to comment
84TAVeRT Posted August 14, 2008 Author Report Share Posted August 14, 2008 i found a posi... but are the splines the same for the 521 and 720... thanks, Chris Quote Link to comment
datzenmike Posted August 14, 2008 Report Share Posted August 14, 2008 I believe so. If it was from a Roadster or 510 wagon I'd say no. Make sure it isn't from a 4X4. Wrong size and ratio. Quote Link to comment
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.