Disc Brakes... - The 1947 - Present Chevrolet & GMC Truck Message Board Network

68beater · 05-25-2002, 06:44 AM

I was wondering if the whole dis brake assembly (Master Cylinder, Power Booster, Proportining Valve and lines) from a 78 truck can be fitted onto a 68 truck? What would be necesarry for this modification?

oldudeSS · 05-25-2002, 07:22 AM

The direct answer to your question is YES!!
The only modification that is necessary is that if you transfer the entire front end assembly eg: cross member and all...
there might be a couple of large attachment bolt holes to re-drill. I have done this and it works quite well. The holes will be very appearant once you get the disc brake front end in place.

------------------
1972 GMC Jimmy (topless reigns)
1996 ImpalaSS
1994 ImpalaSS
too many toys!!!

69 longhorn · 05-25-2002, 09:49 AM

I have 75 parts on the longhorn,but didnt change the crossmember. all of the lines,hoses ,prop valve,master & booster can be fitted. I have a manual disc(vacumn issues with a very health cam that was in a BB Olds at the time),so I cant really say on mods for the booster. the manual brake master bolted right on,with an adjustment to the brake rod. I drilled a hole in the frame(1 ea side) for the brake hoses,& mounted the prop valve to the front crossmember(had to drill holes for that also. the brake hoses are also bolted to the front of the upper a arm( this required a slot on the of the a arm to mount). Good luck........69longhorn

Low69CST · 05-25-2002, 10:47 AM

I have 73-up spindles on my truck. So you should be able to transfer everything over without changing your crossmember.

------------------
'69 CST Short fleetside
Lowered, 400 small block, 700R4, 4 wheel disc brakes, front & rear sway bars
See my truck at: http://www.geocities.com/low69cst/
Student at the University of Kentucky.
Feel free to message me on AOL, SN- SS95ZQ8
Lexington, Kentucky

**MikeB** · 05-25-2002, 08:47 PM

Assuming you have a C10 2WD, you can keep your crossmember, crosslink, inner tie rod ends, idler arm, and Pittman arm, but will need to use 73-87 outer tie rod ends (Moog ES409RT). They are the same length as yours and will screw right on to your tie rod adjuster sleeves. You will also need 73-87 upper ball joints (Moog K6136). The lowers are the same for 71-87 C10 2WD trucks.

------------------
MikeB
69 C-10 Fleetside, mild 383, Dart Iron Eagle heads, Crane Energizer 266 cam and 1.6 roller rockers, Edelbrock Performer manifold and 600cfm carb, HEI w/ MSD components, 1986 front spindles/disc brakes, Vintage Air in-dash.

Wasted Income · 05-28-2002, 08:41 PM

I found a nice '86 C-10 in the junkyard. Can I swap those upper and lower control arms right over to the '67 crossmember in my truck? Cuz that'd be pretty sweet.

Thanks,

05-25-2002, 06:44 AM	#1
68beater Registered User Join Date: Feb 2002 Posts: 32	Disc Brakes... I was wondering if the whole dis brake assembly (Master Cylinder, Power Booster, Proportining Valve and lines) from a 78 truck can be fitted onto a 68 truck? What would be necesarry for this modification?

05-25-2002, 07:22 AM	#2
oldudeSS Registered User Join Date: Apr 2001 Location: Whitney, Texas,America Posts: 28	The direct answer to your question is YES!! The only modification that is necessary is that if you transfer the entire front end assembly eg: cross member and all... there might be a couple of large attachment bolt holes to re-drill. I have done this and it works quite well. The holes will be very appearant once you get the disc brake front end in place. ------------------ 1972 GMC Jimmy (topless reigns) 1996 ImpalaSS 1994 ImpalaSS too many toys!!! __________________ 1972 GMC Jimmy (topless reigns) 1996 ImpalaSS 1994 ImpalaSS too many toys!!!

05-25-2002, 09:49 AM	#3
69 longhorn Registered User Join Date: Aug 2001 Location: rock island,il,usa Posts: 5,382	I have 75 parts on the longhorn,but didnt change the crossmember. all of the lines,hoses ,prop valve,master & booster can be fitted. I have a manual disc(vacumn issues with a very health cam that was in a BB Olds at the time),so I cant really say on mods for the booster. the manual brake master bolted right on,with an adjustment to the brake rod. I drilled a hole in the frame(1 ea side) for the brake hoses,& mounted the prop valve to the front crossmember(had to drill holes for that also. the brake hoses are also bolted to the front of the upper a arm( this required a slot on the of the a arm to mount). Good luck........69longhorn __________________ http://community.webshots.com/user/hotrodhorn

05-25-2002, 10:47 AM	#4
Low69CST Registered User Join Date: May 2000 Location: Frankfort, Kentucky, USA Posts: 2,163	I have 73-up spindles on my truck. So you should be able to transfer everything over without changing your crossmember. ------------------ '69 CST Short fleetside Lowered, 400 small block, 700R4, 4 wheel disc brakes, front & rear sway bars See my truck at: http://www.geocities.com/low69cst/ Student at the University of Kentucky. Feel free to message me on AOL, SN- SS95ZQ8 Lexington, Kentucky __________________ '69 CST Short fleetside Lowered, 400 small block, 700R4, 4 wheel disc brakes, front sway bar & rear camaro sway bar (in progress) '87 V10 4x4 Short Fleetside Quad Suspension and Dual Tanks

05-25-2002, 08:47 PM	#5
MikeB Senior Member Join Date: Jul 2000 Location: North Texas Posts: 3,570	Assuming you have a C10 2WD, you can keep your crossmember, crosslink, inner tie rod ends, idler arm, and Pittman arm, but will need to use 73-87 outer tie rod ends (Moog ES409RT). They are the same length as yours and will screw right on to your tie rod adjuster sleeves. You will also need 73-87 upper ball joints (Moog K6136). The lowers are the same for 71-87 C10 2WD trucks. ------------------ MikeB 69 C-10 Fleetside, mild 383, Dart Iron Eagle heads, Crane Energizer 266 cam and 1.6 roller rockers, Edelbrock Performer manifold and 600cfm carb, HEI w/ MSD components, 1986 front spindles/disc brakes, Vintage Air in-dash. __________________ Mike 1969 C10 LWB -- owned for 35 years. 350/TH350, 3.08 posi, 1st Gen Vintage Air, AAW wiring harness, 5-lug conversion, 1985 spindles and brakes. 1982 C10 SWB -- sold 1981 C10 Silverado LWB -- sold, but wish I still had it! 1969 C10 (not the current one) that I bought in the early 1980s. Paid $1200; sold for $1500 a few years later. Just a hint at the appreciation that was coming. Retired as a factory automation products salesman. Worked part-time over the years for an engine builder and a classic car repair shop. Member here for 24 years! This is the very first car/truck Internet forum I joined. I still used a dial-up modem back then!

05-28-2002, 08:41 PM	#6
Wasted Income Boosted Member Join Date: May 2002 Location: Mackinaw, IL Posts: 2,200	I found a nice '86 C-10 in the junkyard. Can I swap those upper and lower control arms right over to the '67 crossmember in my truck? Cuz that'd be pretty sweet. Thanks, __________________ 1972 2wd K/5 Blazer Turbocharged 370 LSx - 941 rwhp / 1093 rwtq 1969 Chevy K-10 L33 5.3 / 4L80E / NP241 / 4" lift 1964 Buick Skylark Twin TURBO 383 LS pro-touring project 2014 VW Passat TDI - Daily Driver Turbo diesel 2015 Sierra Denali HD Duramax Turbo diesel 2023 Ford Explorer ST - Twin Turbskis 2023 Ford F150 RCSB - Whipple Supercharged 2017 Polaris RZR Turbo 2014 Nor-Tech Center Console - Twin Supercharged Outboards *TURBO ALL THE THINGS!!*

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