'70 disc brake swap - The 1947 - Present Chevrolet & GMC Truck Message Board Network

bobbys1967 · 03-24-2004, 04:49 PM

I have a '70 K-10 with a dana 44 open knuckle and drum brakes. I was told that the disc brakes from a dana 44 all the way up through 85 would work. any info on this would be appreciated.

DennyB · 03-25-2004, 11:48 AM

I was pondering the same question with a '66.
I would imagine a 66 & 70 dana 44 are the same-yes,no????

**JIMs70GMC** · 03-25-2004, 12:33 PM

DennyB, They are different, the 70 has open knuckles while the 69 and earlier has closed knuckles.
The easiest way would be to purchase a 71 and newer front Chevy axle. Could either be a dana 44 or the newer corperate 10 bolt.

6869704X4 · 03-25-2004, 05:00 PM

I did this to my 70. I scrounged parts from here and there to do it. You need everything from the knuckles on out. Exect the locking part of the hubs. Get 73 or newer axle shafts too.
If I had to do it over again I would just get an entire 73 or newer axle.
You will need brake lines either way.

bobbys1967 · 03-25-2004, 05:39 PM

thanks, thats what I needed to here. My front diff was recently rebuilt according to the guy that I bought it from, so I don't really want to replace it with a used one.

DennyB · 03-25-2004, 06:01 PM

Yea, thanks guys. There was a 66 chassis on ebay that I could probably get for $250, but with the chassis mods and then this cost to change over to disc, its probably not worth it for me.
I'll just wait on the right chassis.

BTW Bobby, I didnt mean to walk all over your thread. I just thought we could kill two birds with one stone.

Denny

03-24-2004, 04:49 PM	#1
bobbys1967 Registered User Join Date: Dec 2003 Location: Denver, CO Posts: 22	'70 disc brake swap I have a '70 K-10 with a dana 44 open knuckle and drum brakes. I was told that the disc brakes from a dana 44 all the way up through 85 would work. any info on this would be appreciated. __________________ 1970 K10

03-25-2004, 11:48 AM	#2
DennyB Led Sled! Discs R 4 ME! Join Date: Jan 2001 Location: Toms River, NJ, USA (Transplanted Hoosier) Posts: 7,327	I was pondering the same question with a '66. I would imagine a 66 & 70 dana 44 are the same-yes,no???? __________________ "Never ride faster than your Angel can fly" I.M.O.M,W,J&C Patriot Guard Rider

03-25-2004, 12:33 PM	#3
JIMs70GMC user # 2756 Join Date: Jun 2001 Location: Chesapeake, Virginia Posts: 4,612	DennyB, They are different, the 70 has open knuckles while the 69 and earlier has closed knuckles. The easiest way would be to purchase a 71 and newer front Chevy axle. Could either be a dana 44 or the newer corperate 10 bolt. __________________ 1970 K25, 8' stepside bed 350/465/205 44 up front, 60 in the rear 4.10s rolling on 33" Dunlop MTs 1986 K5, 350/465/208 Dana 60/14 bolt from a cucv 36" Super Swampers TSL/SX 1983 K20 w/ CUCV axles, 350/700R4/208 sitting on 37" Goodyears 1986 M1031 6.2 diesel, TH400/NP205 locker in the rear and a LS in the front, all stock for now..... 1986 K30, 350/400/205 dana 60 and 14 bolt. I kept the drivetrain. Body/bad and chassis are gone. 1981 K30, 350/465/205 dana 60 and dually 14 bolt. Has a G80, and a flat bed. Going to replace the flat bed. 1985 K20, 350/400/208 10 bolt and SF 14 bolt. I wonder where I can find some 1 tons. Hmmmmm

03-25-2004, 05:00 PM	#4
6869704X4 Registered User Join Date: Jul 2002 Location: SE NM Posts: 769	I did this to my 70. I scrounged parts from here and there to do it. You need everything from the knuckles on out. Exect the locking part of the hubs. Get 73 or newer axle shafts too. If I had to do it over again I would just get an entire 73 or newer axle. You will need brake lines either way. __________________ The more I learn about women, the more I love my truck.

03-25-2004, 05:39 PM	#5
bobbys1967 Registered User Join Date: Dec 2003 Location: Denver, CO Posts: 22	thanks, thats what I needed to here. My front diff was recently rebuilt according to the guy that I bought it from, so I don't really want to replace it with a used one. __________________ 1970 K10

03-25-2004, 06:01 PM	#6
DennyB Led Sled! Discs R 4 ME! Join Date: Jan 2001 Location: Toms River, NJ, USA (Transplanted Hoosier) Posts: 7,327	Yea, thanks guys. There was a 66 chassis on ebay that I could probably get for $250, but with the chassis mods and then this cost to change over to disc, its probably not worth it for me. I'll just wait on the right chassis. BTW Bobby, I didnt mean to walk all over your thread. I just thought we could kill two birds with one stone. Denny Last edited by DennyB; 03-25-2004 at 06:04 PM.



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