I'm looking at a rear axle (Chrysler 8.25) but I wanna check the gearing before I buy it. I got the Vin but can figure out the gear ratio. I have 3.55 in my Dana 35 right now. If it's geared lower I might just buy both axles. Here is the Vin any help would be great.
1J4FJ28S3TL188504

 

There's a tag on the axles. What does it say?

 

There isn't a tag on ether axle that's why I was hoping the Vin would say, or if anyone knows the pinion and ring gear teeth count for 3.55 gears that would work

 

Or easier what engine and trans you have ?

 

Pull the cover. Rotate the ring gear till you see numbers like 11:43 for example. Divide 43 by 11 and that's the gear ratio. 43/11 = 3.90.

 

Thank you that's what I'll be doing today I hope

 

You can run the vin# through Chry (very fast) if a newer model XJ and if stock that will tell you the gear ratio. If its a 4.0 with an AW4 trans most likely its a 3.55 gear is what the majority were shipped with.

 

It's a 96 with 4.0 and a 5 speed the gears are 3.90? That sound right?

 

Unless its been re geared you should have 3.07 gears in it.

 

Here ya go, looks like it has a 3.07 rear axle ratio: http://www.jeep.com/webselfservice/B...FJ28S3TL188504

 

You could grab the front axle from a 91-99 xj 4.0 auto that will be 3.55 gear.