Brake booster pushrod firewall grommet

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danpatrick

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Nor Cal
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daniel
Truck Year
1974
Truck Model
c10
Engine Size
350
I have a 1974 Chevy C10 and am currently bring it back to life. I bought a new brake booster and when I went to install it I noticed the new boot on the booster doesn't cover the hole in the firewall. I haven't been able to find any kind of seal, grommet, gasket, etc. that goes there. Would really appreciate any help on this matter. thank you
 
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Bennyt

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Ben
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1977
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C10
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I pieced together a hydro boost on our 77 C10 and I believe I bought a 67-72 grommet.
 
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CalSgt

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Casey
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1980
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Chevy K-10 Custom Deluxe
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350
If you haven’t turned your core in you should be able to get the one off your old booster.

Mine was a 2 piece yellow plastic unit that was covered in the black mastic tar stuff that is all over the firewall. I was able to clean it up with some lacquer thinner and sprayed with vinyl dye.
 
D

danpatrick

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daniel
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1974
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c10
Engine Size
350
Thank you. I just ordered the 67-72 grommet and am going to try that.
 
Goldie Driver

Goldie Driver

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Houston, Texas
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Britt
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1980
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GMC K1500 Suburban
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350
My 80 had the yellow one but I had to modify it to fit the replacement booster. If you have the P/N for it that would be cool.

If someone knows of a source for an anodized booster that would be cool, too !

:)
 
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