drum to disk - The 1947 - Present Chevrolet & GMC Truck Message Board Network

wildwood · 10-09-2003, 03:33 PM

Hey everybody. Could someone advise me on the parts required for converting the Dann 44 drum brakes on a '70 GMC K10 to disk? Would I be able to siply take the setup from a newer K10, or would it have to be from a 67-72 with disks? Thanks

Pont · 10-09-2003, 09:16 PM

It's an easy swap. I took the drum Dana 44 out of my 67 and bolted in a later model (77 or 78 I think) Disc Dana 44. Everthing should just bolt up. Using later model brake hoses also threaded directly to the original fitting at the frame. Let us know if you run into any problems that I'm not aware of.

mkmiller1 · 10-09-2003, 09:37 PM

Can you change the gears(say 3.07 to 3.73) in a D44? I know that you can't do this in the carriers in 12B, just never heard about a Dana.
Thanks,
Matthew

**JIMs70GMC** · 10-10-2003, 05:15 AM

It appears that the cut off for changing carriers is 3.73 and down and 3.92 and up.

Scrub · 10-21-2003, 11:24 PM

I think you will need a disc type master cylinder and a disc proportioning valve to work correctly. I did on mine. Disc brakes use more fluid than drums.

dejavue

wildwood · 10-22-2003, 06:59 PM

I've got the proportioning valve and booster from a disk truck, but what I really need to know is if I can keep everything intact and just change the spindles and stuff from another D44 and if so which D44 or would I have to chang the whole thing out like pont mentioned.

As for the gear thing, you can get 4.10 gears to fit the 3.73 carrier from Motive. This comes in handy if you want to run bigger tires and keep that carrier

Thanks for the help guys

**JIMs70GMC** · 10-22-2003, 08:11 PM

I was looking in a reider racing catalog. They have the same thing you mention for dana 60 axles. I did not see anything like that for 44s not that that means anything.

10-09-2003, 03:33 PM	#1
wildwood Registered User Join Date: Jun 2003 Location: Calgary AB Posts: 110	drum to disk Hey everybody. Could someone advise me on the parts required for converting the Dann 44 drum brakes on a '70 GMC K10 to disk? Would I be able to siply take the setup from a newer K10, or would it have to be from a 67-72 with disks? Thanks __________________ You can't get out if ya don't get in

10-09-2003, 09:16 PM	#2
Pont I need another Barley Pop Join Date: Feb 2001 Location: Grants Pass, OR Posts: 1,629	It's an easy swap. I took the drum Dana 44 out of my 67 and bolted in a later model (77 or 78 I think) Disc Dana 44. Everthing should just bolt up. Using later model brake hoses also threaded directly to the original fitting at the frame. Let us know if you run into any problems that I'm not aware of. __________________ 67 Short Fleet 4x4 04 Honda CRF450R 89 Toyota 4-Runner 34 Ford 2 door sedan - Long term project ---------------------------------------------- There is a very fine line between "hobby" and "mental illness"

10-09-2003, 09:37 PM	#3
mkmiller1 Senior Member Join Date: Dec 2000 Location: Magnolia, Arkansas Posts: 1,091	Can you change the gears(say 3.07 to 3.73) in a D44? I know that you can't do this in the carriers in 12B, just never heard about a Dana. Thanks, Matthew __________________ GOD is good...All the time! '71 swb custom10 barn find-68K original miles 72 K5 CST rust bucket, but runs and drives 84K miles

10-10-2003, 05:15 AM	#4
JIMs70GMC user # 2756 Join Date: Jun 2001 Location: Chesapeake, Virginia Posts: 4,612	It appears that the cut off for changing carriers is 3.73 and down and 3.92 and up. __________________ 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

10-21-2003, 11:24 PM	#5
Scrub Collector of rusty Items Join Date: Dec 2001 Location: Sisters,Oregon USA Posts: 731	I think you will need a disc type master cylinder and a disc proportioning valve to work correctly. I did on mine. Disc brakes use more fluid than drums. dejavue __________________ Scrub Sisters, Oregon - Home of the Sisters Rodeo. 70 GMC 1,000,000 + miles 72 K-20 project, 456 Dana60 front, Corp14 rear w/locker, 265R19.5 tires 20-ply. Warn 12k winches both ends, Cross-over steering with raised tie-rod, Powerbox steering, 4500 watt 120-AC power, Air, Hydraulic aux power, 4 inch lift, 5000 lb air-bags both ends.

10-22-2003, 06:59 PM	#6
wildwood Registered User Join Date: Jun 2003 Location: Calgary AB Posts: 110	I've got the proportioning valve and booster from a disk truck, but what I really need to know is if I can keep everything intact and just change the spindles and stuff from another D44 and if so which D44 or would I have to chang the whole thing out like pont mentioned. As for the gear thing, you can get 4.10 gears to fit the 3.73 carrier from Motive. This comes in handy if you want to run bigger tires and keep that carrier Thanks for the help guys __________________ You can't get out if ya don't get in

10-22-2003, 08:11 PM	#7
JIMs70GMC user # 2756 Join Date: Jun 2001 Location: Chesapeake, Virginia Posts: 4,612	I was looking in a reider racing catalog. They have the same thing you mention for dana 60 axles. I did not see anything like that for 44s not that that means anything. __________________ 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



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