Rear Brake drums needed for a factory posi dana 44 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Walts_restoration · 07-05-2009, 09:05 PM

Its a factory positrac 2wd half ton, and he says it needs to be offset a half inch to the inside to fit properly. Normal rears are supposedly straight up and down. Anybuddy have any info on the differences or places to find a new, correct rear drum? Any infro appreciated, thanks guys.

Walts_restoration · 07-06-2009, 06:53 PM

bump for today.

**Captainfab** · 07-06-2009, 11:58 PM

I assume you've checked and the drums for the Dana 44 are different than the ones for the 12 bolt? I've never worked on a Dana 44 rear differential, but it wouldn't surprise me if the brakes were the same.

**aerotruk63** · 07-07-2009, 05:53 AM

If you give me the year and model of the diff I can look it up for you.

slorio · 07-07-2009, 08:33 AM

Walt:
The GMC's used the Dana 44. Here is a summary of my search for brake drums for my 1966 GMC with 6 lugs.

I have two part numbers you can try for rear 6 lug brake drums. The first is a Wagner BD 60089. The second is Allsafe 2067 DGS.

I used the Allsafe from Autozone. It is for a later model (I think 67-72) truck with 4 wheel drive. It has fins on the outside unlike the original that is smooth. The only modification that I had to make was to drill the 6 lug holes from 1/2" to 9/16" so that the drum would fit on the shoulders on the rear lugs like the original. This drum had the right offset unlike the Chevy drums.

The Wagner was a number that I got from another member of the 6066gmcguy.org site. I haven't used that one, but was told it was a direct match to the original (a bit pricey, though is what I remember).

I hope this helps with those looking for rear 6 lug drums.

Regards,

Steve Lorio

New Orleans, LA

07-05-2009, 09:05 PM	#1
Walts_restoration Real Projects never die Join Date: Jan 2007 Location: Lawrence, kansas Posts: 1,508	Rear Brake drums needed for a factory posi dana 44 Its a factory positrac 2wd half ton, and he says it needs to be offset a half inch to the inside to fit properly. Normal rears are supposedly straight up and down. Anybuddy have any info on the differences or places to find a new, correct rear drum? Any infro appreciated, thanks guys. __________________ Ill put it this way, ive got a few lawn ornaments My name tag says Ryan KansasTwister On other forums

07-06-2009, 06:53 PM	#2
Walts_restoration Real Projects never die Join Date: Jan 2007 Location: Lawrence, kansas Posts: 1,508	Re: Rear Brake drums needed for a factory posi dana 44 bump for today. __________________ Ill put it this way, ive got a few lawn ornaments My name tag says Ryan KansasTwister On other forums

07-06-2009, 11:58 PM	#3
Captainfab 60-66 Nut Join Date: Mar 2007 Location: Coeur d'Alene, Idaho Posts: 23,252	Re: Rear Brake drums needed for a factory posi dana 44 I assume you've checked and the drums for the Dana 44 are different than the ones for the 12 bolt? I've never worked on a Dana 44 rear differential, but it wouldn't surprise me if the brakes were the same. __________________ Power Steering Box Adapter Plates For Sale HERE Power Brake Booster Adapter Brackets For Sale '63-'66 HERE and '67-'72 HERE and '60-'62 HERE and "60-'62 with clutch HERE Rear Disc Brake Brackets For Sale. Impala SS calipers HERE Camaro Calipers HERE D52 Calipers HERE 6 Lug HERE Hydroboost Mounting Plates HERE

07-07-2009, 05:53 AM	#4
aerotruk63 Check The Champ, Demonstrator Join Date: Jun 2009 Location: Montreal,Quebec Posts: 6,627	Re: Rear Brake drums needed for a factory posi dana 44 If you give me the year and model of the diff I can look it up for you. __________________ 1963 *Chevrolet Truck* Literature LINK: https://picasaweb.google.com/113840717762774560215 YouTube Channel with 20+ Original *Chevrolet Truck* Salesmen, Mechanics & Service Department Training Slideshows. https://www.youtube.com/results?sear...otruk63&page=1

07-07-2009, 08:33 AM	#5
slorio Registered User Join Date: Sep 2006 Location: Louisiana Posts: 375	Re: Rear Brake drums needed for a factory posi dana 44 Walt: The GMC's used the Dana 44. Here is a summary of my search for brake drums for my 1966 GMC with 6 lugs. I have two part numbers you can try for rear 6 lug brake drums. The first is a Wagner BD 60089. The second is Allsafe 2067 DGS. I used the Allsafe from Autozone. It is for a later model (I think 67-72) truck with 4 wheel drive. It has fins on the outside unlike the original that is smooth. The only modification that I had to make was to drill the 6 lug holes from 1/2" to 9/16" so that the drum would fit on the shoulders on the rear lugs like the original. This drum had the right offset unlike the Chevy drums. The Wagner was a number that I got from another member of the 6066gmcguy.org site. I haven't used that one, but was told it was a direct match to the original (a bit pricey, though is what I remember). I hope this helps with those looking for rear 6 lug drums. Regards, Steve Lorio New Orleans, LA



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