Dana 44 Questions and regear

[Huntr]

Hello! I am once again here to ask for assistance. 

 

I have what I believe to be a factory dana 44 w/limited slip under my comanche. I am planning on re-gearing since I swapped in an ax15 and 35in tires. 

 

Couple questions:

It originally had a ba10 trans paired with the 44. What was typically the stock gear ratio on these? I believe the tag says 3.07 but when the VIN was decoded it said 4.10. I can pull the cover and count teeth, but am just trying to avoid that. Is 3.07 normal on these?

 

Are there any guides on re-gearing specifically the XJ/MJ dana 44? Most things reference the wrangler axles. Anyone have pertinent info on the specs of these axles I should be aware of when ordering parts? 

 

Thanks for the help!

[89 MJ]

For the most part, a D44 rear should be the same as most other D44 rears. 

 

3.07s were standard with a 4.0 and a 5 speed. 

[Huntr]

6 minutes ago, 89 MJ said:

For the most part, a D44 rear should be the same as most other D44 rears. 

 

3.07s were standard with a 4.0 and a 5 speed. 

 

That's what I was worried about. If they are 3.07s I'll have to also buy 2 new carriers for the gears. Dang!

[derf]

Nothing special about that Dana 44.  It's the same center section as any 70s/80s Dana 44 in any Dodge, Ford, or GM.  Tons of parts available to do the regear.

 

You can verify the ratio by spinning the pinion with both tires off the ground.  Count how many times the pinion spins for one rotation of the wheels.  A little more than 3 is 3.08.  3 and a half is 3.54s, 3 and 3/4 is 3.73, a little more than 4 is 4.09.

 

Stock should be 3.08.  But there's no telling what may have been done to the axle since it left the factory.  Or even if that specific axle came with the truck.

[ghetdjc320]

You can just run a thick cut gearset for the 44 so you don’t have to swap the carrier

[89 MJ]

1 hour ago, ghetdjc320 said:

You can just run a thick cut gearset for the 44 so you don’t have to swap the carrier

Not to hijack, but are there any disadvantages to this?