gearing question for the metric ton

[comanchebuilder21]

What is the gear ratio I've came up with 3 diffrent ones from 3 diffrent sources 4.10 4.56 an 4.88 I belive I just want stock ratio.i believe it is the amc20 axle

[Incommando]

Need more info. If it is an '86 m/t it is an AMC20. One year deal. As to gearing that mainly depends on your engine tranny combo. "Metric ton" alone tells us almost nothing. An '88 4.0/auto will be 3.55 regardless of the rear springs for example

[comanchebuilder21]

It's a 88 4.0 5 speed not sure exactly on what Trans think ax15 maybe

[88whitemanche]

Ok 88 means b/a 10 transmission....and 3.07 gears

And you have 3 rear axle options Dana 35, dana 44, and amc 20....

Since it's an 88 amc 20 is out of the picture....

Unless that truck has already been modified....

Stock Comanches with an auto came with 3.55 gears and manual had 3.07 gears....if you had a 4.0

2.5 Comanches auto (rumored) came with 4.56 gears and the manual came with 4.10s

[Incommando]

If it is a factory 88 4.0 metric ton with a stick it should be a d44 rear with 3.07 gears. Should be. Anything can happen in 27 years

[comanchebuilder21]

It's not the b\a 10 trans I have one of those for my 89 an I know it's not that. I put 35s up on my truck an I'm just not liking the drive so was trying to see if I axle swapped with my other. If I could get a better ratio but I have 3.73 right now an looking for 4.10 or 4.88. I check what axle is under it tomrow it's a soon to be project truck if I ever get time so haven't really touched it since bought

[Eagle]

The Peugeot BA 10/5 was the only 5-speed transmission used by Jeep behind the 4.0L engine in 1988. The change to the AX-15 was made mid-year in the 1989 model run. If your truck does not have a BA 10/5, it is not in factory configuration.

 

With 35-inch tires, you need 4.88s.

[shelbyluvv]

2.5, auto with 4:56s is not a rumor. I have them in my 86. While rare they are out there.

[comanchebuilder21]

I had the b/a in my 89 an thing was junk an I shattered it so now I'm running a ax15 an I'm pretty sure it's same as the one in the other.ill take a photo of it an different cover so we can fully figure out what they changed

[comanchebuilder21]

How much would a regearing kit for a d44 go for that's what's under the truck now that I drive with 3.73

[Incommando]

Was the axle swapped in or the gears changed. 3.73 wasn't a factory option.

 

Gear sets with install kits will run from $200 & up depending on how good of a set you want. If the gears are 3.55 or numerically lower you will also need a new carrier for 3.73 & up gears for another $100 or so.

[comanchebuilder21]

This axle was swapped in so would I be better off buying a used axle with better gears or buying a set

[comanchebuilder21]

How do u post a pic on here?

[Eagle]

You put the photo(s) on a photo hosting site like Photobucket or Tinypics, then post a link to the photo(s).