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08-17-2014, 07:53 PM | #1 |
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Join Date: Aug 2012
Location: Rathdrum ID
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non power MC for disc drum
My truck is at the shop for brake lines, steering shaft shortening and final check before I start driving it. I put on front disc brakes from a 85. I picked up a MC and booster for a 70-72 Impala. I got thinking the other day that my cam might be too big to have power brakes. I will have the brake guy check the vacuum in the morning when I swing by after work. If it isn't making enough vacuum, what MC should I use? I need a two pot manual disc/drum MC. I will keep the Impala set up for when I do a motor swap next year.
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66 shorty |
08-17-2014, 07:55 PM | #2 |
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Join Date: Jul 2010
Location: los angeles,ca
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Re: non power MC for disc drum
67 Chevy truck m/c?
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08-17-2014, 09:05 PM | #3 |
State of Confusion!
Join Date: Jul 2002
Location: Gulfport, MS USA
Posts: 46,858
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Re: non power MC for disc drum
Any 71/72 truck MC should work as long as you have the proportioning valve for the front disks. I think it is pretty much a bolt in replacement when not using the booster.
I have also see folks use the 73-87 style hydroboost off the 3/4 & 1 ton trucks.
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Bill 1970 Chevy Custom/10 LWB Fleetside 2010 Toyota Tacoma PreRunner SR5 Double Cab - DD Member of Louisiana Classic Truck Club (LCTC) Bill's Gallery Life isn't tied with a bow, but it's still a gift. Live simply. Love generously. Care deeply. Speak kindly. Leave the rest to God! |
08-18-2014, 12:41 AM | #4 |
60-66 Nut
Join Date: Mar 2007
Location: Coeur d'Alene, Idaho
Posts: 23,247
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Re: non power MC for disc drum
You can use a '71-'87 manual brake master cylinder. Or another trip to Pull And Save for a hydroboost.
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Power Steering Box Adapter Plates For Sale HERE Power Brake Booster Adapter Brackets For Sale '63-'66 HERE and '67-'72 HERE and '60-'62 HERE and "60-'62 with clutch HERE Rear Disc Brake Brackets For Sale. Impala SS calipers HERE Camaro Calipers HERE D52 Calipers HERE 6 Lug HERE Hydroboost Mounting Plates HERE |
08-18-2014, 07:01 AM | #5 |
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Re: non power MC for disc drum
I hope I have enough vacuum. lol If not I might go with hydroboost and save the MC/booster for another truck down the road. But to get it on the road I will go with non power for the rest of this year. Thanx for the help!
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66 shorty |
08-23-2014, 10:50 PM | #6 |
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Location: gadsden, alabama
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Re: non power MC for disc drum
72 vette 1" manual master cylinder $24.00 at rockauto.com , direct bolt on and stops on a dime.
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08-23-2014, 10:58 PM | #7 |
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Location: Eugene, Oregon
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Re: non power MC for disc drum
I kept the original M/C with my truck. Works great! Then again, I'm using McGaughy discs, so that may be part of it.
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08-24-2014, 03:36 AM | #8 |
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Join Date: Aug 2012
Location: Rathdrum ID
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Re: non power MC for disc drum
I had the single pot MC and those things are unsafe. And I want the truck to be safe and comfy.
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66 shorty |
08-25-2014, 12:37 AM | #9 |
60-66 Nut
Join Date: Mar 2007
Location: Coeur d'Alene, Idaho
Posts: 23,247
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Re: non power MC for disc drum
Did you find out yet if your engine produces enough vacuum for a vacuum booster? I have my doubts with that big cam, but thought I'd ask.
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Power Steering Box Adapter Plates For Sale HERE Power Brake Booster Adapter Brackets For Sale '63-'66 HERE and '67-'72 HERE and '60-'62 HERE and "60-'62 with clutch HERE Rear Disc Brake Brackets For Sale. Impala SS calipers HERE Camaro Calipers HERE D52 Calipers HERE 6 Lug HERE Hydroboost Mounting Plates HERE |
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