Swap Rear End From Earlier Javelin

I Have a 73 AMX that has the regular rear end (non Twin Grip).
I just pulled a good twin grip out of my 68 parts Javelin today.  Aren't these the same rear ends basically from 68-74 Javelins?  The parts interchange book I have shows that the 3rd member is different from 68 & 69 compared to 71-74. I am confused now.

I would like to put the entire rear end from my 68 Javelin into the 73 AMX.  Will I have any issues if I make this swap?

bigbadgreen wrote: I'm no expert on newer jav / amx. I know the earlier housing is shorter compared to later.but I believe people use them.wider tires in back too!

Hmmm...  I did not measure either of these to see if they are different. I will have to do that but doing a visual they both looked the same to me.

Wouldn't you know it!  What year was the twin grip that I bought from you Jim? I was going to put that one in my 70 Javelin.

Now I am going to be on the hunt for a 71-74 complete twin grip with hopefully a 3.54 .

Looks like I have an extra early model one now to sell or trade.




Edited by IdahoSpud - Dec/09/2016 at 10:29pm

Have a 70 AMX rear in my 73 Jav.  Did that swap back in 1989. Bolt in no mods. Was also able firt my 275/60-15 Hoosiers with no problem.

I have been told that I can take the whole trac lock carrier from the 68 and place it in the 73 and that I will need to use the center button from the 73. I was told I will need to replace pinion and side bearings along with a reshim.  The differential pinion and axle seals need replaced obviously.

Looks like a rebuild to me.