tsa256 Posted April 22, 2011 Share Posted April 22, 2011 Hello everybody I have a quick question. I recently got a free 1986 Jeep Comanche X ( not a metric ton) with a 2.8 V6 and I've been looking at the specifications and could not find a rear axle ratio. There was no tag or any other numbers to give me a clue. Anyways I did the axle test. Spin the axle to see how many revolutions for one tire and it came to just a little more than 4. So my question is (assuming I have 4.11 gears) in 1986 was a 4.11 rear axle ratio stock or was this re geared. Thanks ahead of time Link to comment Share on other sites More sharing options...
jimoshel Posted April 22, 2011 Share Posted April 22, 2011 4:11 were available as stock. I believe the 3;53 was standard and 4:11 optional. 2 of my MJ are '86 with 2.8, 5sp and 4:11. Link to comment Share on other sites More sharing options...
alleydog Posted April 22, 2011 Share Posted April 22, 2011 I was under the impression that 4.10 gears were the most common gear in the early cherokee, and I would think the same would go for comanche. Link to comment Share on other sites More sharing options...
tsa256 Posted April 23, 2011 Author Share Posted April 23, 2011 4:11 were available as stock. I believe the 3;53 was standard and 4:11 optional. 2 of my MJ are '86 with 2.8, 5sp and 4:11. Sweet thanks. Looks like I've got a similar build '86 with 2.8, 5sp and 4:11. For some reason earlier I though the 4.11 were only with the stronger drive trains 4L Dana 44/AMC 20. While were at it; These are standard springs correct? Thanks. Link to comment Share on other sites More sharing options...
dasbulliwagen Posted April 23, 2011 Share Posted April 23, 2011 My 86 Mj had stock 4:10's. They came with the 5 speed trans in the v6 and 4 cyl models, the auto could have come with 3:73 in a v6, or 4:56 with a 4 cyl. The auto ones would need to be verified though. Link to comment Share on other sites More sharing options...
akamcbird Posted April 23, 2011 Share Posted April 23, 2011 my '86 was the v6, auto, 4x4, 4.11 in a d35, was an xls Link to comment Share on other sites More sharing options...
whowey Posted April 23, 2011 Share Posted April 23, 2011 AMC era.... all possible gear ratios were available at time of ordering... 3.07, 3.31, 3.55, 3.73, 4.10, 4.56 were all listed as possible in 86. Link to comment Share on other sites More sharing options...
jimoshel Posted April 23, 2011 Share Posted April 23, 2011 Some people seem to be confused, especially me, by the gear ratios in their rear ends. Also confused by the ratios in their Jeeps rear ends. Checked the Dana site and came up with the following. Dana. 44, 4.09, rounded off 4.10 45/11 Dana 35, 4.10 41/10 Dana 35, 4.11 37/9 Apparently the 44 is only 4.10 The 35 can be either 4.10 or 4.11 Only way to tell for sure is removing cover and counting cogs. For what it's worth Link to comment Share on other sites More sharing options...
tsa256 Posted April 23, 2011 Author Share Posted April 23, 2011 Some people seem to be confused, especially me, by the gear ratios in their rear ends. Also confused by the ratios in their Jeeps rear ends. Checked the Dana site and came up with the following.Dana. 44, 4.09, rounded off 4.10 45/11 Dana 35, 4.10 41/10 Dana 35, 4.11 37/9 Apparently the 44 is only 4.10 The 35 can be either 4.10 or 4.11 Only way to tell for sure is removing cover and counting cogs. For what it's worth Thanks that clears things up. I don't think it really matters whether I put 2175.255 ft-lbs or 2180.5605ft-lbs of torque to the ground in first. Anyways can anyone clarify if that is a standard leaf pack in the picture above. Thanks. Link to comment Share on other sites More sharing options...
MJRemi Posted April 23, 2011 Share Posted April 23, 2011 Yes it is the standard leafs. My D44 has 3.54 ratio. Link to comment Share on other sites More sharing options...
whowey Posted April 23, 2011 Share Posted April 23, 2011 My Dana 44 in my MJ has 3.07. Link to comment Share on other sites More sharing options...
Naterenfo1 Posted April 23, 2011 Share Posted April 23, 2011 my 86 2.8 5 speed 4x4 has stock 4.10 gears (opened the dif and checked myself ;) ) Link to comment Share on other sites More sharing options...
Garvin Posted April 24, 2011 Share Posted April 24, 2011 I feel like the odd man out. :( My '86 Comanche X (2.8L V6, AX5, NP207, Dana 30/35 non c-clip) was 3.55's. Need to check the front to make sure the PO didn't decide to swap the rear and didn't match the gears though (was abused before I got to it but I got it cheap). Link to comment Share on other sites More sharing options...
86FUBAR Posted April 24, 2011 Share Posted April 24, 2011 I feel like the odd man out. :( My '86 Comanche X (2.8L V6, AX5, NP207, Dana 30/35 non c-clip) was 3.55's. Need to check the front to make sure the PO didn't decide to swap the rear and didn't match the gears though (was abused before I got to it but I got it cheap). And here I was starting to feel like the odd man out after reading how lucky all these other damn guys are cause my 86 2.8 AX5 30/35 non C -clip had 3.55 stock . Thanks now I don't feel so bad Link to comment Share on other sites More sharing options...
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