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-   -   Rear Axle Swap Dana 70u from Jeep CJ10A Tug (http://www.m715zone.com/vb/showthread.php?t=20267)

jlogan January 15th, 2011 02:29 PM

Rear Axle Swap Dana 70u from Jeep CJ10A Tug
 
This is a work in progress but I just wanted to post a few pics of an axle swap. I'm using a Dana 70u out of a mid 80's CJ10A airplane tug. It has 4.88 gears and a powerlok. The WMS to WMS is 75.5", so it is an inch wider than the stock axles (73.5") on each side. I'm planning on using H1 rims with it.

Sorry these are ugly cell phone pics, but it was all I had. I'm having a local 4wd shop do the work.

http://i444.photobucket.com/albums/q...l/IMAG0080.jpg

The stock drums on the tug axle are stamped with Ford logos, so I bought a Ford Dana 70u disc brake bracket from Ruff Stuff Specialties http://www.ruffstuffspecialties.com/...roducts_id=214. They bolted to the existing backing plates and lined up perfect.


You can see how much space there is between the stock springs and the brakes. If you wanted you could probably use the stock drums that come on these axles.

http://i444.photobucket.com/albums/q...l/IMAG0079.jpg

The center section is in the center of this axle. So the clearance between the gas tank and driveshaft is pretty tight. Right now the gas tank is about 1.5" away from the inner edge of the frame. I think once it gets tucked over against the frame the driveshaft will have enough room. May still need to bend or trim the very edge/corner of the tank by the driveshaft. You can also see in this pic how the bottom of the 70u is very smooth with no bottom lip protruding to hang up on rocks or whatever else you like to run over.
http://i444.photobucket.com/albums/q...l/IMAG0081.jpg

A Dana 60 from a M1008 will go up front, spring under, using the stock springs. It has 4.88 gears swapped in and ballistic fab high steer arms for the steering. Will also be putting DRW hubs on it to use the H1 wheels. They will be doing something similar to bluesman2a and wantapinz for the spring perches on the front axle. Waiting on spring bushings for the stock front springs right now.

I'll post more pics hopefully in a few weeks when it is done.

Panther January 15th, 2011 04:15 PM

Wow, good stuff.
What's the t-case and the e-brake?

Sent from my SPH-M900 using Tapatalk

brute4c January 15th, 2011 07:34 PM

Great info and pics...even if they are from a phone, they show the stuff good.

Nice work so far and great job sharing the details!!

jlogan January 15th, 2011 08:18 PM

Quote:

Originally Posted by Panther (Post 183109)
Wow, good stuff.
What's the t-case and the e-brake?

Sent from my SPH-M900 using Tapatalk

It is a divorced NP205 from a mid 70's dodge truck with an aftermarket parking brake. A couple of years ago someone on here did a write up on a more affordable do-it-yourself version.

osut362 January 16th, 2011 03:59 PM

me.....al

Grantshire January 17th, 2011 09:28 AM

Quote:

Originally Posted by jlogan (Post 183105)
This is a work in progress but I just wanted to post a few pics of an axle swap. I'm using a Dana 70u out of a mid 80's CJ10A airplane tug. It has 4.88 gears and a powerlok. The WMS to WMS is 75.5", so it is an inch wider than the stock axles (73.5") on each side. I'm planning on using H1 rims with it.

Sorry these are ugly cell phone pics, but it was all I had. I'm having a local 4wd shop do the work.

http://i444.photobucket.com/albums/q...l/IMAG0080.jpg

The stock drums on the tug axle are stamped with Ford logos, so I bought a Ford Dana 70u disc brake bracket from Ruff Stuff Specialties http://www.ruffstuffspecialties.com/...roducts_id=214. They bolted to the existing backing plates and lined up perfect.


You can see how much space there is between the stock springs and the brakes. If you wanted you could probably use the stock drums that come on these axles.

http://i444.photobucket.com/albums/q...l/IMAG0079.jpg

The center section is in the center of this axle. So the clearance between the gas tank and driveshaft is pretty tight. Right now the gas tank is about 1.5" away from the inner edge of the frame. I think once it gets tucked over against the frame the driveshaft will have enough room. May still need to bend or trim the very edge/corner of the tank by the driveshaft. You can also see in this pic how the bottom of the 70u is very smooth with no bottom lip protruding to hang up on rocks or whatever else you like to run over.
http://i444.photobucket.com/albums/q...l/IMAG0081.jpg

A Dana 60 from a M1008 will go up front, spring under, using the stock springs. It has 4.88 gears swapped in and ballistic fab high steer arms for the steering. Will also be putting DRW hubs on it to use the H1 wheels. They will be doing something similar to bluesman2a and wantapinz for the spring perches on the front axle. Waiting on spring bushings for the stock front springs right now.

I'll post more pics hopefully in a few weeks when it is done.


Glad to see you do this, :) I have one of the tug axles my self and thought long and hard about using it on Big Cheese. Keep the pictures and write-up coming!

wrecker January 17th, 2011 02:08 PM

That's great J. I'm sorry about not getting the pics for you yet, but I'm thinking you should be able to use unmodified Hummer wheels.

SVENG52 January 17th, 2011 03:01 PM

Wow awesome axle to swap in. I cant say those rears are easy to find thou.

Grantshire January 17th, 2011 06:13 PM

Quote:

Originally Posted by SVENG52 (Post 183228)
Wow awesome axle to swap in. I cant say those rears are easy to find thou.

Easier than you might think and can be pretty cheap. Most guys with CJ10A's scrap them because no one wants them.

Troop ISP January 18th, 2011 06:49 AM

Axle swap
 
The swap looks great. The thing I like the best is you have more room in the back to clear your brake calipers. Who did you get your high steer components from?


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