Rear Axle Swap Dana 70u from Jeep CJ10A Tug

[cleefurd]

Maybe someone a little more computer literate than me can link that JP magazine article about their M-715 axle swap. It explains it pretty good I think. In fact maybe one of the mods could put it under the sticky about axle swaps.

What he said

[Panther]

A sticky would be good. Here's a couple links that might be helpful.

http://www.jpmagazine.com/techarticl...wap/index.html

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[Panther]

Here's some pics from wanapinz and the set up on his 725. This gives an idea of the spring under front gm dana 60 with dually front hubs.









This is a great set up. However, I don't see how you can stay spring under and squeeze a 6bt in there.

[cleefurd]

Here's some pics from wanapinz and the set up on his 725. This gives an idea of the spring under front gm dana 60 with dually front hubs.

This is a great set up. However, I don't see how you can stay spring under and squeeze a 6bt in there.

3 Questions;

• Are those NOS, refurb, or National/aftermarket springs?
• Hoping the 6BT is do-able with this approach, since it's the only reason I'm not doing a spring over and Rockwells... in order to keep a low CG.
• Is there a thread on this build? Assuming those are HMMWV wheels to be out that far.

[Panther]

Sorry for the large pics, don't know how to resize them.

There is a thread here http://www.m715zone.com/vb/showthread.php?t=14125

Also for what you want to do, this build should gives you ideas http://www.m715zone.com/vb/showthread.php?t=8380

[Mikel]

I used a dana 70 from a 70s Chevy motorhome that was 72" WMS to WMS. Had 4.10s and fits quite nicely in a M715 with HMMWV rims. I did convert it to disks.

[skunkworks32]

Does the Dana 70u from Jeep CJ10A Tug share the exact same spring perch as our M715?

[Grantshire]

Does the Dana 70u from Jeep CJ10A Tug share the exact same spring perch as our M715?

Don't believe it does. The CJ10A is a chopped Wagoneer frame and has the same rear width. J trucks had a wider frame in back. However, moving the perches out slightly is no big deal and the extra wide width of the CJ 10A Dana 70 makes it a great choice. The stock 4.88 gears with either a limited slip or locker are pluses as well.

[skunkworks32]

Thanks for the info! I picked one up today, still looking for the front one.

[skunkworks32]

Grantshire the Chevy DRW front Dana 60 is from a M1008 right? Does it line up well or will I have to do modifications?