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#1 |
Senior Member
Join Date: Jul 2010
Location: South Dakota
Posts: 4,093
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Where to find a manual mc. 71 chevy c20
Im trying to find a manual mc for a c20 but am having trouble. I bought what I thought was a correct mc but the part where the push rod goes into the mc is to shallow. I called summit and he said that the shallow one is for manual brakes not power but yet Im told the deeper mc is correct for manual brakes. Can anybody shed light on this? And if I need a mc for non power breaks where can I find one?
Thanks
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1969 Chevy c20(Miss Hackjob) |
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#2 |
Junior Member
Join Date: Dec 2006
Location: Southeast Missouri
Posts: 2,436
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Re: Where to find a manual mc. 71 chevy c20
Have you tried local parts stores, that is where we get a lot of parts for our old trucks.
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'67 Chevy C-20 short stepper - build complete, 454/SM-465. '75 C-30 Single Cab DRW-350 small block/NP-435. '77 GMC-6500 Dump Truck, 427 Tall Deck. '92 GMC K-3500 Duallie, 454/4L80E. |
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#3 |
Senior Member
Join Date: Jul 2010
Location: South Dakota
Posts: 4,093
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Re: Where to find a manual mc. 71 chevy c20
Ya they all have set ups for power brakes. I'd rather not have power brakes but idk if I have a choice...
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1969 Chevy c20(Miss Hackjob) |
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#4 | ||
"I ain't nobody, dork."
Join Date: Sep 2007
Location: Whidbey Island, Washington
Posts: 8,940
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Re: Where to find a manual mc. 71 chevy c20
Hmm... since 1971 was the first year for power front disc brakes, I wonder if no trucks were offered with a manual master cylinder.
Maybe one from a 1969 or a 1970 would work? Gary
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'cuz chicks dig scars... My 1972 GMC 1500 Super Custom (Creeping Death) "long term" build thread. The Rebuild of Creeping Death after the wreck Quote:
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#5 |
70+ ( Old Skool Club )
![]() Join Date: Nov 2003
Location: Saskatoon, Saskatchewan ,Canada
Posts: 9,119
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Re: Where to find a manual mc. 71 chevy c20
I have seen and I'm not sure if the truck was a 72 or 71 manual brakes. The discs were standard in 71-72 but Power Brakes were still an option you had to pay for. In the late 80's I bought a 68 Barracuda Formula S model that had the factory 383 and 4 speed manual. The car was original and had front manual disc brakes. A little research showed that in order to get the 383 in the Barracuda you had to order the front disc brakes but power brakes were an option. I remember driving that beast and even with the discs up front and because of that heavy 383 you really had to push on the pedal to get it to stop in a hurry.
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1972 C10 Custom/Deluxe 613 Highlander 406/700R4 1999 White Tahoe LS 4x2 with Z56 Police Package 1992 K1500 GMC Suburban Members I have personally met: MusicMan70 - HeavyD - ChewyChevy67 - StingRay -71SWB4x4 - 67 Burb - DeadheadNM - too much stuff - bc65 - das601 " Circumsatances Do Not Change Responsibility " " The Sky is not the Limit, Your Mind is." Marilyn Monroe .. RIP Charlie Watts 1941 - 2021 |
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#6 |
Registered User
Join Date: Feb 2013
Location: Upland, Calif
Posts: 698
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Re: Where to find a manual mc. 71 chevy c20
I would use a 67-78 Corvette manual master, 1" bore. RAYBESTOS MC36367
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1957 CHEVY 1/2 TON SHORT BED 1940 FORD 1/2 TON SHORT BED |
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#7 |
Registered User
Join Date: Jun 2010
Location: Upland Ca
Posts: 4,143
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Re: Where to find a manual mc. 71 chevy c20
C20 and above brake parts are rarity at auto parts box stores. I'd be calling Wes at classic heartbeat or GMCPaul.
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1972 C10 SWB, Air, PS, PB, 350/350THM. Second owner. 1965 Corvette roadster, 44K miles, 327/365 SHP, 4 speed, side exhaust, knockoffs, teak, second owner (bought in 1970), Have ALL numbers matching components. My frame off restoration thread: http://67-72chevytrucks.com/vboard/s...d.php?t=556703 |
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#8 | |
Senior Member
![]() Join Date: Feb 2001
Location: New Madison, Ohio
Posts: 21,365
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Re: Where to find a manual mc. 71 chevy c20
Quote:
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A husband can be right...or...A husband can be happy. ![]() 67-72 Chevy and GMC Trucks...The Classic Truck for the Classic Folk. ![]() 1970 CST Two tone green, 402BB, 400 Automatic, Tach, Buckets, AC, AM-FM, Tilt, GM CB, GM 8 Tract, LWB, etc ![]() ![]() JOHN 17:3...The better side of "LIFE" Remember: Everyday is a good day...Some are just gooder! |
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#9 |
Senior Member
Join Date: Jul 2010
Location: South Dakota
Posts: 4,093
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Re: Where to find a manual mc. 71 chevy c20
So power brakes seem the way to go for a set up. What is all required to switch to power brakes?
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1969 Chevy c20(Miss Hackjob) |
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#10 |
Registered User
Join Date: Jul 2013
Location: Rochester, NY
Posts: 19
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Re: Where to find a manual mc. 71 chevy c20
A vacuum source, the booster, the 1 way valve hose coming off of the booster, and ambition.
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#11 | |
Senior Member
![]() Join Date: Mar 2000
Location: Rockville,In. USA
Posts: 3,720
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Re: Where to find a manual mc. 71 chevy c20
Quote:
http://www.rockauto.com/catalog/x,ca...,parttype,1836 EIS Part # RE77008 Master Cylinder (Remanufactured); 1/2 TON,1 1/8" - MANUAL BRAKE EQPD [Wholesaler Closeout -- 30 Day Warranty] (Only 2 Remaining) $6.55 Paul @ GMCPauls |
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#12 |
Registered User
Join Date: Feb 2013
Location: Orange, Calif
Posts: 183
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Re: Where to find a manual mc. 71 chevy c20
ALL disc brake C20's came with power, all disc brake C10's came with power until 1974 when manual became available
ALL C20 power disc brakes used a 1 1/4" master due to larger caliper piston diameter. All C10 power disc brakes used a 1 1/8" master while the manual versions, 74 and above used 1" bore master. If you have the large bore C20 calipers you might try a 1 1/8" bore manual master but it may be too hard which I would use a 1" bore for manual. |
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#13 |
Senior Member
Join Date: Jul 2010
Location: South Dakota
Posts: 4,093
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Re: Where to find a manual mc. 71 chevy c20
Thank you guys all for your help. I decided to order a remane booster and mc for the truck. Hopefully this goes smoother lol.
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1969 Chevy c20(Miss Hackjob) |
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