GMC guys! Dana 44 ??

[Vintage Windmills]

I have a power lok Dana 44 in my 67 GMC 4x4. Will refer to this thread when I get to restoring it. Good info here

[steinepstein]

I also just measured the bolt dimensions on the axle housing end. They are the same as a big ford housing end. 3.5" x 2.375". You can find these dimensions on the assembly instructions document on the Wilwood website. Wilwood brake set 140-7139 should bolt right up to that housing end. I still need to confirm the bearing offset, I think that may have to be changed or find a brake kit with a different offset.

Saved myself a rearend without tearing it up.

Good stuff.

[steinepstein]

Ok, I just confirmed that the axle pilot hole will have to be turned down to fit the 140-7139 Wilwood kit, but other than that, the axle housing end and bearing on the Dana 44 is big a Ford 9" setup, awesome. Captain Fab also mentions turning down the axle pilot on some of his brake kits (I didn't quite understand at first). Anyway good luck with your setup, I'm glad you got this all posted in the first place, saved me a bunch of time and money.

[fasttech]

I will depend on the rotors you are using. I am using 1980 Seville rotors which require the center pilot to be turned down as well as the outer part of wheel flange. Then if you are changing from a 6 lug to a 5 that machine work has to be done.
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[ivanuf2]

Anyone finally did the 44 Dana disk brakes, or can confirm the Wilwood kit part number that will fit the Dana with the big ford axle?
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[fasttech]

The setup I am using works but I can't comment on the Willwood.

If you want to go the build your own route here is what you need:
* Ford 9" Bracket Kit (from Oldedays)
* Left Rear Caliper GM 79-85 (Cardone 18-4139) this one has the parking brake
* Right Rear Caliper GM 79-85 (Cardone 18-4139) this one has the parking brake
* Brake pads for GM 79-85 rear caliper
* 1978 Seville Rear Rotors (can get get slotted and drilled as option)
* Disc Brake Hose Kit (Gear Head 9828) this one is stainless
* Parking brake cable (BrakeBest BC93292) needs a little customization
* Get axles turned for a 3" pilot and outer flange diameter of 6.125" or just have some new axles built like I did. When I compared the cost of all the machine work (including 6 to 5 lug) to the cost of new ones it was only about $100 more. Got mine from Dutchman Motorsports.

[Chuck78]

Great old post, adding some additional info for the 60-72 GMC Dana 44 1/2 ton owners looking to do a 5-lug disc brake conversion, NITRO CUT-TO-LENGTH CHROMOLY DANA 44 30-SPLINE JEEP AXLES!

https://nitro-gear.com/nitro-gear-ax...1971-2018.html

https://justdifferentials.com/nitro-...r-dana-44.html

Triple drilled including 5 on 5" lug pattern, 5 on 5.5", & 5 on 4.5"!



This doesn't help the 6-lug guys, but for me, this seals the deal on whether or not swapping a 75-91 5-lug 2wd disc brake Suburban front suspension crossmember was a good idea or not...