Dana 35 Gear ID

[87manche]

So, I've got my free rearend taken apart and need to ID the ring and pinion.
The spider gears are totally trashed, so I can't turn the axle and count the pinion turns.
I have all the numbers from the ring gear, does anyone have a list to what they mean?
numbers on the ring.
9 2086 DANA D 42725N P25R8 39 11
Farther down the ring gear it's stamped 735, this is reverse of the direction of the dana numbers
Pinion has 11 teeth.

 

[Eagle]

39 divided by 11 = 3.54

 

[87manche]

that doesn't seem right. Axle came from a 4 banger with an AX-4.
Looking at gear kits it seems that it could be 3.73.
41-11.
Of course I may have also mis-counted the pinion.
Anyway.
it came out of an 86 AX-4 2.5L MJ. SO what "should" it be. I'm getting the matching front. Was considering moving my new brake hardware to this axle and the same front. Anything's got to be better than 3.07s.

 

[OLAK]

ring gear 42725 is part of a gear set that is listed as 3.55 or 39-11. considering this is stamped right on the ring gear, previous rely is correct

 

[Eagle]

that doesn't seem right. Axle came from a 4 banger with an AX-4.
Looking at gear kits it seems that it could be 3.73.
41-11.
Of course I may have also mis-counted the pinion.
Anyway.
it came out of an 86 AX-4 2.5L MJ. SO what "should" it be. I'm getting the matching front. Was considering moving my new brake hardware to this axle and the same front. Anything's got to be better than 3.07s.

4 bangers with the AX-4 were geared with 3.54 because they don't have an overdrive 5th gear. That's what I have in two 4-banger MJs in my yard right now.

And the numbers are right there in the data you read off the ring gear. I didn't make up the 39 and the 11 -- you gave 'em to me.

 

[87manche]

yeah, I'm stupid then. I wonder if it's wven worth the trouble to put these under the MJ then.
Wishful thinking that they were lower

 

[langer1]

yeah, I'm stupid then. I wonder if it's wven worth the trouble to put these under the MJ then.
Wishful thinking that they were lower

3.55 that should be the same as you have now.

 

[87manche]

I've got an AX-15. 3.07's for me.

 

[langer1]

I've got an AX-15. 3.07's for me.

You need both ends also.

 

[87manche]

I've got the matching front end. It's in very good shape with new unit bearings iand u-joints installed last year.
The spider gears in this 35 are totally shot. Lots of metal chunks in the bottom.
I was considering swapping the spider gears from my working 35 to this axle. then putting them both under the MJ, but I don't know if it's worth all that work to go from 3.07 to 3.55. At the very least I'll be robbing the new unit bearings and u-joints from the donor front, as mine are shot. Then I can put new u-joints in the shafts and have spare shafts for all four corners.

 

[langer1]

I've got the matching front end. It's in very good shape with new unit bearings iand u-joints installed last year.
The spider gears in this 35 are totally shot. Lots of metal chunks in the bottom.
I was considering swapping the spider gears from my working 35 to this axle. then putting them both under the MJ, but I don't know if it's worth all that work to go from 3.07 to 3.55. At the very least I'll be robbing the new unit bearings and u-joints from the donor front, as mine are shot. Then I can put new u-joints in the shafts and have spare shafts for all four corners.

Put a Aussie locker in it then, you don't need any spider gears, just a good cross pin.

 

[87manche]

Put a Aussie locker in it then, you don't need any spider gears, just a good cross pin.

yeah, but I don't want to buy a locker for an axle I plan on replacing in the fall. The grand plan is to put an 8.8 in the rear, and I'd like it to be 4.10. That's why I was hoping these axles would be 4.10. Oh well. I'll figure out what to do. I'm like a freakin woman tonight.

 

[langer1]

Something to think about is a supper low range kit for your T=case that way you have all the power you need plus still can afford to drive it.

 

[87manche]

Something to think about is a supper low range kit for your T=case that way you have all the power you need plus still can afford to drive it.

I've considered that also. I'm researching those. I was planning on beefing up the t-case with 231C parts or 241 parts anyway, and that kit would solve the whole problem of strength and gearing.

 

[Jeff in VA]

PM me about your axle dilema...I may be able to help you out via either my MJ or the 'yard down here....
Jeff

 

[Eagle]

Normally I would say that 3.54s are better than 3.07s, but if you plan to change axles in less than a year to an 8.8 and 4.10s, then it probably isn't worthwhile to swap in the 3.54s now.