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Old 10-26-2011, 10:28 AM
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new 7" brake booster install questions

hey guys i'm doing a little updating to the 38 dodge as i put the motor back in it and have the dog house off. i had purchased a 7" booster and new master cylinder for it a while back and just got the booster out to put it on last night and it bolts up different than my pedal. am i mission a bracket or something? it has 4 maybe 1/4 inch bolts spaced in about a 4" square. my pedal has 4 rather large 1/2 bolts spaced about 2 by 3 apart. what am i missing?

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Old 11-02-2011, 05:54 PM
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You might have to post a pic.
Are you using a corvette mas cy?
I'm working on a 37 Plymouth
Where are you in Indiana?
Would sure like to share (read steal) some of your ideas.
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Old 11-03-2011, 09:10 AM
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ok here is more info.

i have a booster like this
https://lh3.googleusercontent.com/pu...P5AYYyqo=s90-c

and my pedal is out of a a body GM
http://t0.gstatic.com/images?q=tbn:A...HtX-RwvVC7DTBC

i think what is missing is the booster bracket seen here
http://static.speedwaymotors.com/RS/...91031978_L.jpg

but i really wanted to mount the booster flat on the firewall. is there a different brake pedal that you can buy that will mount to the holes on the back of the booster?
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Old 11-03-2011, 09:12 AM
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Quote:
Originally Posted by Art Deco
You might have to post a pic.
Are you using a corvette mas cy?
I'm working on a 37 Plymouth
Where are you in Indiana?
Would sure like to share (read steal) some of your ideas.
seymour. hour south of indy on i65. ideas are free of charge, good ideas cost extra.
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Old 11-03-2011, 09:24 AM
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looking for some thing like the pedal shown here.
http://www.ebay.com/itm/7-Brake-Boos...#ht_1285wt_952


i didn't know if some of the later gm cars like camaros had a different pedal design like this, since they used the smaller boosters.
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Old 11-03-2011, 09:44 AM
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booster specs

3-3/4" thick from master cylinder mount face to firewall mount face
4" long firewall mount face to end of pushrod
Booster mounts to bracket or body with four bolt square pattern on 3-3/8" centers
Master cylinder studs are two 3/8" coarse studs across from each other on 3-3/8" centers
Opening of booster on master cylinder side for master cylinder snout or flange to fit into is 1.620"
Booster is 3-3/4" thick from mounting surface to mounting surface for master cylinder
Shaft coming out of booster for attachment to pedal arm is 3/8" fine thread
Outside diameter is 7"
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Old 11-03-2011, 08:24 PM
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I think youre on the right track. I cant really help. my set-up is under the floor.
I'm in South Bend thats a haul but maybe I'll see you sometime at the James Dean fest in Fairmont.
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