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Old 04-14-2008, 11:03 PM   #1
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Another Axle Swap Question

Does anyone have experience in swapping axles from a M-1008 military Chevy pickup.

The axles are:
-Dana 60 front axle
-Co 10.5" 14 bolt Full Floater rear axle Locked

They are 8 lug pattern axles. Will they make a relatively easy conversion, and wont be too wide?

I am getting them from a local guy for $100 each is that a good price?

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Old 04-14-2008, 11:24 PM   #2
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Thats a great price if they are in decent shape at all. Not bad at all. Now, do you know what kind of locker it is? Id assume Detroit because the only locker I can think of that came in military dodge's was detroit lockers. Measure the width from wms (wheel mounting surface) to wms and compare it to the measurment from your stock axle (should be about 60" if memory serves me correct). If its close in width then you should be stellar. If they are way wider than you'll look like an R/C car (I highly doubt they will be narrower) but it will make it more stable so thats up to you. Your deff. gonna need new driveshafts (or shorten/lengthen your current ones) because I gurantee the pinion on the back of the diff. will stick out more than your tock axles. Besides that your going to need to cut all the old axle bracketry off so that new can be welded on. Lastly, youre gonna want to freshen up the brakes most likely. You have to get the measurments and weigh your options. Also, find out the gear ratio and make sure its decent for the current tire size your running. There are a lot of options to weigh in here. Take your time to decide because this kind of swap is a fairly large project and you want to know what your getting into before you dive in.

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Old 04-14-2008, 11:49 PM   #3
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Thanks for the info be sure to take all into consideration. The guy I'm getting it from said I will be able to take my drive shafts to a machinist near buy that will take the u-joints off the drive shafts from the M-1008 and attach them to my drive shafts and that will work do you know anything about that? The locker is a Detroit and the axle gear ratio is 4.56:1 (do not actually know that for sure found that out by search online I believe that is stock). At the same time, I am looking to put 35" tires, a V8, and a SM465 Trans. Have not found the Trans. yet but I think I may have one, depends on the price and condition. The gearing in the Trans. is 6.55, 3.58, 1.57, and 1.0. I will use my same T-case the NP 231, which is 2.72:1 in low range and 1:1 in high.
How does that sound?

I put all of this into http://www.novak-adapt.com/knowledge/gearing.htm

I got 81 for the Crawl Ratio and 2845 for the Engine RPM's at 65 MPH

So as long as it is not ridiculously wide it will be relatively simple?
On the condition, he said they still work well with no problems and no leaks.
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Old 04-15-2008, 12:31 AM   #4
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for width, you can allways get different offset/BS rims so..
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Old 04-15-2008, 01:00 AM   #5
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Trip, this is true but that will only work to an extent. If the axle is like 2" wider or something then that will certainly work. But that is probably the easiest way around that. When you get into cutting tubes down and custom/different rive shafts things get expensive and far more complicated quick. As far as the u-joint swap issue, it will depend on what kind of joints are in each driveshaft. A new yoke can be used or they may just be the same. I dont know those axles very well so I couldnt tell you on that one. I was referring to having them shortened so they are the proper length. A shop can do that for you though. And yes, as long as they are not super wide they should be somewhat easy to swap if you know how to weld/fab decently. Good luck!
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Old 04-15-2008, 09:03 AM   #6
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How about the Dana 60 front axle? Will the steering linkages cause any problems or is that the same thing, cut bracket... weld bracket?

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