68 with 74 c member brake line ? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

68on22s · 09-05-2005, 07:00 PM

I have a 68 pickup with a cross member off of a 74 and I dont know what brake lines to order. Should I order the lines for a 74 front end and front to rear lines for a 68 or what. I know someone has ran into this problem with all the crossmember swaps folks are doing.

72MARIO · 09-05-2005, 08:40 PM

I am using the lines form a 73 with my 73-87 spindles. The hole is in the frame for them to run into. Go with the 73 up they should work out for you. They did for me.

SCOTI · 09-05-2005, 09:27 PM

I also used the 73-up style lines when I swapped to discs on my 68. I . . ....

mounted the prop-valve in the stock 73-up location

slightly tweaked the lines to better follow the framerail

spliced in to a factory union under the pass side of the cab

used the factory holes in the frame & the 73-up brake hoses/clips

I did need to space the prop-valve about a 1/4" away from the splash apron for a better fit on the lines as they entered the valve (I used over-sized nuts as spacers).

69 longhorn · 09-06-2005, 09:16 AM

I did the same on brakes on my 69, all the pcs came from a 75 C10. I had to drill the holes in the frame for the brake hoses tho. after that, I used the master,lines , & prop valve from the 75(mounted in the same spot Scoti has his). I also used the '75 12bolt,along with the brakes on it. Mine is manual disc, so I couldnt say what mods need to be done for the later booster. best of luck,crazyL

SCOTI · 09-06-2005, 07:26 PM

Quote:

Originally Posted by 69 longhorn

I did the same on brakes on my 69, all the pcs came from a 75 C10. I had to drill the holes in the frame for the brake hoses tho. after that, I used the master,lines , & prop valve from the 75(mounted in the same spot Scoti has his). I also used the '75 12bolt,along with the brakes on it. Mine is manual disc, so I couldnt say what mods need to be done for the later booster. best of luck,crazyL

You could prob use the later mstr.cyl/booster but I took the used ones that came w/my 'suspension clip' as cores for the correct 71-72 pwr disc booster & mstr cylinder. I figured the engineering had already been done, no sense re-inventing the wheel.

68on22s · 09-06-2005, 10:25 PM

ok thanks that is what I was looking for. Now I can finally get my lines this weekend.

09-05-2005, 07:00 PM	#1
68on22s 68 in progress Join Date: May 2004 Location: hamilton ohio Posts: 50	68 with 74 c member brake line ? I have a 68 pickup with a cross member off of a 74 and I dont know what brake lines to order. Should I order the lines for a 74 front end and front to rear lines for a 68 or what. I know someone has ran into this problem with all the crossmember swaps folks are doing.

09-05-2005, 08:40 PM	#2
72MARIO Registered User Join Date: Nov 2000 Location: Huntsville Ontario Canada Posts: 4,052	I am using the lines form a 73 with my 73-87 spindles. The hole is in the frame for them to run into. Go with the 73 up they should work out for you. They did for me. __________________ 1968 Suburban numbers matching all original truck now equipped with 6.0/4L80 on Accuair http://67-72chevytrucks.com/vboard/s...d.php?t=625017 1967 C/20 6.0/4L80 Roofing Truck 1990 V2500 Suburban "Plow Truck" 2005 TAHOE DD

09-05-2005, 09:27 PM	#3
SCOTI Registered User Join Date: Apr 2001 Location: DALLAS,TX Posts: 21,939	I also used the 73-up style lines when I swapped to discs on my 68. I . . .... mounted the prop-valve in the stock 73-up location slightly tweaked the lines to better follow the framerail spliced in to a factory union under the pass side of the cab used the factory holes in the frame & the 73-up brake hoses/clips I did need to space the prop-valve about a 1/4" away from the splash apron for a better fit on the lines as they entered the valve (I used over-sized nuts as spacers). __________________ 67SWB-B.B.RetroRod 64SWB-Recycle 89CCDually-Driver/Tow Truck 99CCSWB Driver All Fleetsides @rattlecankustoms in IG Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive. It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar..... *Cubic inches is like Indiana Jones with a cheap pistol.*

09-06-2005, 09:16 AM	#4
69 longhorn Registered User Join Date: Aug 2001 Location: rock island,il,usa Posts: 5,382	I did the same on brakes on my 69, all the pcs came from a 75 C10. I had to drill the holes in the frame for the brake hoses tho. after that, I used the master,lines , & prop valve from the 75(mounted in the same spot Scoti has his). I also used the '75 12bolt,along with the brakes on it. Mine is manual disc, so I couldnt say what mods need to be done for the later booster. best of luck,crazyL __________________ http://community.webshots.com/user/hotrodhorn

09-06-2005, 10:25 PM	#6
68on22s 68 in progress Join Date: May 2004 Location: hamilton ohio Posts: 50	ok thanks that is what I was looking for. Now I can finally get my lines this weekend.



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