MJRemi Posted September 29, 2012 Share Posted September 29, 2012 I don't see any visible stamping or tag for my MJ AMC 20 but I was told the truck was a 4spd or 5spd 4cyl. I rotated the wheel and counted the rotations of the diff. collar and came up with slightly below 4:1 ratio. Was there a 3.9 or 3.8 gear set? I will eventually de-gunk the entire axle and clean/inspect the interior but until then I was curious regarding the ratio. Hopefully I will see markings after the cleaning. I can't get to the front axle yet the way it is pushed up to a wall, or I would look for the ratio on that. Link to comment Share on other sites More sharing options...
opsled Posted September 29, 2012 Share Posted September 29, 2012 My 86 2.1 is 4.10's Don't know what else may have been offered. opsled Link to comment Share on other sites More sharing options...
MJRemi Posted September 29, 2012 Author Share Posted September 29, 2012 Actually now that I think about it, I stopped the wheel as the collar reached 4 turns, leaving a little more for the wheel to complete 1 turn. Slightly higher than 4:1. Thus, my good Watson, resulting in a 4.10 gear ratio. Yeah! Link to comment Share on other sites More sharing options...
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