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01-18-2019, 01:33 PM
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#1 |
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Senior Member
 
Join Date: Jul 2015
Location: Phoenix, AZ
Posts: 1,333
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WTB: power brake booster
As I hear the reman boosters are junk, I'm looking for correct a power brake booster for my 70 C10. Running a BB in it. Will have front disc conversion brakes. I have the master cylinder. Just need the correct booster.
Thanks! |
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01-18-2019, 02:04 PM
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#2 |
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Account Suspended
 Join Date: Jul 2016
Location: Tacoma, WA
Posts: 6,873
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Re: WTB: power brake booster
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01-18-2019, 02:08 PM
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#3 |
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Account Suspended
Join Date: Jul 2016
Location: Tacoma, WA
Posts: 6,873
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Re: WTB: power brake booster
As far as correct, I don’t recall what booster a 70 has on it, the boosters all interchange as far as firewall mounting, the mechanical difference is in how far the center pin sticks out to contact the master cylinder, there is short which is actually recessed a little, I believe that to be 71-2 3/4 ton and almost all others stick out like the one I have for sale.
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01-18-2019, 02:50 PM
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#4 |
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Account Suspended
Join Date: Jul 2016
Location: Tacoma, WA
Posts: 6,873
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Re: WTB: power brake booster
For my own reference I looked for pics of a 70 half ton booster, 69-72 half ton boosters are all the same and shown in post 5 of this thread
http://67-72chevytrucks.com/vboard/s...d.php?t=364533 |
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01-18-2019, 03:00 PM
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#5 |
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Senior Member
Join Date: Jul 2015
Location: Phoenix, AZ
Posts: 1,333
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Re: WTB: power brake booster
PM sent Randy.
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01-18-2019, 03:13 PM
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#6 | |
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Account Suspended
Join Date: Jul 2016
Location: Tacoma, WA
Posts: 6,873
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Re: WTB: power brake booster
Quote:
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01-18-2019, 03:27 PM
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#7 |
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Senior Member
Join Date: Jul 2015
Location: Phoenix, AZ
Posts: 1,333
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Re: WTB: power brake booster
Randy, I sent you another PM. Please reply. I don't think the one you are selling is the same as those in the pic in thread 5.
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01-18-2019, 03:44 PM
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#8 | |
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Account Suspended
Join Date: Jul 2016
Location: Tacoma, WA
Posts: 6,873
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Re: WTB: power brake booster
Quote:
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01-18-2019, 03:50 PM
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#9 |
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Senior Member
Join Date: Jul 2015
Location: Phoenix, AZ
Posts: 1,333
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Re: WTB: power brake booster
Still looking....
Should be GM part number 3970502 for the booster. Thanks |
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01-19-2019, 12:57 AM
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#10 |
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Senior Member
Join Date: Jul 2015
Location: Phoenix, AZ
Posts: 1,333
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Re: WTB: power brake booster
So I got home and checked my 70 parts manual. There does not appear to be any changes of boosters between small and bib block applications. They do differentiate between Ser 10, 20, 30, 40 and 50-60.
Oddly, the parts book does not list the booster as a full assembly, that I can tell. They have numbers for the front and rear shells. 70 Ser 10. Blazer (Conv. 4/WD) w Brake Booster --rear w/seal (Bendix 2508458) 3979467 --front w/stud (Bendix 2508880) 3979477 |
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