Re: [AMC-list] 4/4/1968

[Joe Fulton <piper_pa20@xxxxxxxxxxx>]

Michael,

Welcome to the mail list.  Your rearend is a 3.15:1 ratio (41/13).   If you car came with a V8 as you say, the rear end design is called an AMC 20.  Six cylinder cars would have a lighter duty AMC 15 design.   For many years of AMC models there is a letter code stamped on the passenger side boss of the differential housing.  Info to decode to letter is in the TSM for the model year.  But you have the tag, so that should suffice.

Regards,
Joe Fulton






________________________________
 From: MICHAEL LAGUNAS <notaxiwarrior@xxxxxxxxx>
To: "amc-list@xxxxxxxxxxxxxxxxx" <amc-list@xxxxxxxxxxxxxxxxx> 
Sent: Wednesday, March 5, 2014 11:23 AM
Subject: [AMC-list] 4/4/1968
 

Hey !!  I have a 1969 Javelin that was born on April, 04, 1968. She came originally with a 290 V-8, 2-barrel and a 3 speed manual trans!  I have replaced the original 290 with a 360 out of a 74 AMX and I am attempting to determine what rear end I have in her.  Where would the markings be on the differential denoting the gearing ?? I have looked but the only markings I have found is as follows::  13-41,  anyway I think it is an 4 but could be a triangle!  Anyone have an idea on this. I am redoing the engine and am trying to figure out for a new cam.  Thanks

Mike
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