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Old 10-31-2016, 01:41 PM   #1
bzblaine
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Question HELP! Installing new Booster/MC/Prop to 70 C10

I have a 1970 C10 Short Step with manual drum all the way around. I'm in the process of installing drop spindles and discs to the front . I'm keeping the drums in the back. I purchased a MC and booster from Pepboys as they had a killer sale. I got a prop valve from a 71/72 c10. I will include links to the Booster and MC below. I have never done this kind of work before so I need a bit of info. What exactly do I need to do for a proper install? I don't have a bracket for the booster, what kind do I need? how do I run the lines from the MC to Prop and so on. did I even purchase the correct things? Any info helps. Pictures would be great. I tried searching the forums but couldn't really find anything. Thanks in advance.

Booster:
https://www.pepboys.com/product/deta...520Big%2520Blk

MC:
https://www.pepboys.com/product/deta...520Big%2520Blk
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Old 10-31-2016, 01:49 PM   #2
davepl
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Re: HELP! Installing new Booster/MC/Prop to 70 C10

Wouldn't the MC and prop valve for 1971 be intended for use with disc/drum rather than drum/drum? They switched in 1971 from front drum to front disc.
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Old 10-31-2016, 02:14 PM   #3
bzblaine
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Re: HELP! Installing new Booster/MC/Prop to 70 C10

I do apologize, I might not have been very clear. I will have Disc front and Drum rear. I purchased a drop spindle/ disc setup from Mcgaughy's.
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Old 10-31-2016, 03:21 PM   #4
zosoppp
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Re: HELP! Installing new Booster/MC/Prop to 70 C10

There should be some sort of bracket holding the current "proportioning-like valve" to the current booster/MC that you can reuse the the new "proportioning valve"

You will also need some missing bracketry to mount and connect the booster to your brake pedal.
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Old 10-31-2016, 10:33 PM   #5
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Re: HELP! Installing new Booster/MC/Prop to 70 C10

This is all factory stuff, so you should be able to get parts from almost anywhere
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Old 11-01-2016, 11:19 AM   #6
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Re: HELP! Installing new Booster/MC/Prop to 70 C10

http://lmgtfy.com/?q=how+to+replace+...er+and+booster
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Old 11-01-2016, 11:31 AM   #7
bzblaine
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Re: HELP! Installing new Booster/MC/Prop to 70 C10

Quote:
Originally Posted by crakarjax View Post

There is no reason for that. I know how to Google, man. I'm new to this mechanic stuff and was hoping to get some info or pointers from fellow C10 guys that have been through this.
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Old 11-01-2016, 01:22 PM   #8
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Re: HELP! Installing new Booster/MC/Prop to 70 C10

I'm in the middle of adding a power booster to my 67, so I'll let you know what I've learned and done. The part that can be difficult to find is the bracket from a 71 or 72 c10 that mounts the booster to the firewall. I've read that the 73 and up bracket will work with some modification, but I decided to buy a booster from early classic enterprises that includes a new bracket. I've already installed a 4/6 drop from ece, so I went with their booster because it was designed/intended to be used with the rest of their kit. Lastly a new hole, 1 inch lower, needs to be drilled in the brake pedal that holds the push rod to maintain the proper 4.5 to 1 ratio.
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