Disk Brake Dana 44 Swap Brake Line Question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

harrdawg54 · 10-22-2016, 08:23 PM

Hello,
So I grabbed a Dana 44 with disk brakes from a '73 k20 to swap into my '69 K20 (Still had the stock closed knuckle drum brake Dana 44) and am having a hard time trying to figure out what brake lines to use. I am pretty sure the fitting from the hard line is 7/16-20 and all lines for '71 and up with disk brakes seem to be 3/8-24, all with the correct banjo fitting for the caliper. Does anyone know what brake line I could get that has the proper fitting to the hard line? Thanks.

71meangreenc10 · 10-23-2016, 01:03 AM

I did the same swap for a guy, used the 72 hard lines and 74 C10 rubber lines, BH36759 and BH36760 for his lifted 4X4. Worked fine with new calipers. I welded in the brake line holder in the frame where the disk line goes through.

Smitty

harrdawg54 · 10-23-2016, 04:16 AM

We're you able to buy a new set of prebent hard lines or did you get them off of a donor truck?

71meangreenc10 · 10-23-2016, 12:07 PM

I got them from LMC, I also changed the master cylinder and combo valve to a disk/drum set up. If you order them from LMC, just make sure to check the two lines from the master to combo valve to ensure they sent the correct ones.

Smitty

harrdawg54 · 10-24-2016, 11:49 AM

Thanks 71meangreenc10. I just ordered my new lines. Hopefully the rest of the swap goes smoothly.

71meangreenc10 · 10-24-2016, 12:44 PM

Quote:

Originally Posted by harrdawg54

Thanks 71meangreenc10. I just ordered my new lines. Hopefully the rest of the swap goes smoothly.

No problem,

Just make sure if you use the 71,72 lines on a 69 you will have to relocate the mounting for the rubber lines. Look at the picture I posted. The back whole on the frame is where the disk brake caliper line ran through, the front whole with the adapter on it is for drum brakes.

The metal lines are also different at the prop valve between a disk and drum application. I can post pics if you need them. Got a 4x4 in the ER right now with the front clip off.

Smitty

harrdawg54 · 10-25-2016, 11:39 PM

If you have time and think about it I would love any additional information that would help make the conversion easier. Thanks!

10-22-2016, 08:23 PM	#1
harrdawg54 Registered User Join Date: Apr 2007 Location: Sandpoint, Idaho Posts: 178	Disk Brake Dana 44 Swap Brake Line Question Hello, So I grabbed a Dana 44 with disk brakes from a '73 k20 to swap into my '69 K20 (Still had the stock closed knuckle drum brake Dana 44) and am having a hard time trying to figure out what brake lines to use. I am pretty sure the fitting from the hard line is 7/16-20 and all lines for '71 and up with disk brakes seem to be 3/8-24, all with the correct banjo fitting for the caliper. Does anyone know what brake line I could get that has the proper fitting to the hard line? Thanks. __________________ 1969 Chevy K20 Custom Camper 350, 4sp, 33's High on plans, Low on funds

10-23-2016, 01:03 AM	#2
71meangreenc10 Its a Truck Thing...... Join Date: Dec 2004 Location: Sierra Vista, Arizona Posts: 3,159	Re: Disk Brake Dana 44 Swap Brake Line Question I did the same swap for a guy, used the 72 hard lines and 74 C10 rubber lines, BH36759 and BH36760 for his lifted 4X4. Worked fine with new calipers. I welded in the brake line holder in the frame where the disk line goes through. Smitty Attached Images __________________ 71 C10 283/3SPD Full Resto 71 GMC 1500 Sierra Grande http://67-72chevytrucks.com/vboard/s...d.php?t=518599 70 C10 Suburban Former military GSA truck. 72 Chevy Blazer 4X4, Sloppy Jo, Mountain Climber. Wife says no more trucks. http://67-72chevytrucks.com/vboard/s...d.php?t=707378 72 GMC 1 Ton Motor Home, wife said no more trucks until she saw this one. Gen 3 6.0/4L80E 4.10 http://67-72chevytrucks.com/vboard/s...d.php?t=761110 68 GMC Suburban was 3/4 ton, now 1/2.Wife shook her head 71 C30 Wrecker 71 C20 Scott-Bilt As weird as it gets..BB Cheyenne AC Truck 68 GMC Long Stepside. They keep following me home 71 C20 Longhorn/Ole Yellor 69 C30 Former Motor Home, Flat Bed time

10-23-2016, 04:16 AM	#3
harrdawg54 Registered User Join Date: Apr 2007 Location: Sandpoint, Idaho Posts: 178	Re: Disk Brake Dana 44 Swap Brake Line Question We're you able to buy a new set of prebent hard lines or did you get them off of a donor truck? __________________ 1969 Chevy K20 Custom Camper 350, 4sp, 33's High on plans, Low on funds

10-23-2016, 12:07 PM	#4
71meangreenc10 Its a Truck Thing...... Join Date: Dec 2004 Location: Sierra Vista, Arizona Posts: 3,159	Re: Disk Brake Dana 44 Swap Brake Line Question I got them from LMC, I also changed the master cylinder and combo valve to a disk/drum set up. If you order them from LMC, just make sure to check the two lines from the master to combo valve to ensure they sent the correct ones. Smitty __________________ 71 C10 283/3SPD Full Resto 71 GMC 1500 Sierra Grande http://67-72chevytrucks.com/vboard/s...d.php?t=518599 70 C10 Suburban Former military GSA truck. 72 Chevy Blazer 4X4, Sloppy Jo, Mountain Climber. Wife says no more trucks. http://67-72chevytrucks.com/vboard/s...d.php?t=707378 72 GMC 1 Ton Motor Home, wife said no more trucks until she saw this one. Gen 3 6.0/4L80E 4.10 http://67-72chevytrucks.com/vboard/s...d.php?t=761110 68 GMC Suburban was 3/4 ton, now 1/2.Wife shook her head 71 C30 Wrecker 71 C20 Scott-Bilt As weird as it gets..BB Cheyenne AC Truck 68 GMC Long Stepside. They keep following me home 71 C20 Longhorn/Ole Yellor 69 C30 Former Motor Home, Flat Bed time

10-24-2016, 11:49 AM	#5
harrdawg54 Registered User Join Date: Apr 2007 Location: Sandpoint, Idaho Posts: 178	Re: Disk Brake Dana 44 Swap Brake Line Question Thanks 71meangreenc10. I just ordered my new lines. Hopefully the rest of the swap goes smoothly. __________________ 1969 Chevy K20 Custom Camper 350, 4sp, 33's High on plans, Low on funds

10-25-2016, 11:39 PM	#7
harrdawg54 Registered User Join Date: Apr 2007 Location: Sandpoint, Idaho Posts: 178	Re: Disk Brake Dana 44 Swap Brake Line Question If you have time and think about it I would love any additional information that would help make the conversion easier. Thanks! __________________ 1969 Chevy K20 Custom Camper 350, 4sp, 33's High on plans, Low on funds



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