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Old 01-24-2013, 09:27 PM   #1
Jimbabwe
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Re: Power Brake Booster Adapter Bracket

Captainfab,
What is the depth of your bracket top and bottom?

Would the use of the '88-98 S10 (or similar) booster be essentially the same additional power as a 3/4 or 1 ton booster? It's just a matter of it being dual diaphragm?

Do you know the diameter of the boosters you recommend?

Does having the booster closer to the firewall lessen the stopping power of the power assembly because the arm is shorter and therefore has less leverage?

I ask because, before coming across your bracket, I was wondering why I couldn't just mount the booster directly to the firewall. I'm just thinking it looks better without that deep, ugly bracket, and I'm running the straight six with the stock air cleaner, so I need the clearance. I hate the look of the offset I6 air cleaner that puts it over the valve cover...hate it. Your bracket may be the way to go if I can make sure I'll have the air cleaner and throttle cable clearance (because of the I6). I'm using a Lokar floor shifter, so the column shift is not an issue.
Sorry for the twenty questions!
Thanks.
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Old 01-25-2013, 02:03 AM   #2
Captainfab
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Re: Power Brake Booster Adapter Bracket

I don't have the dimensions of my booster brackets handy. I am at home now and all of the parts I fabricate are at my shop. I can get you some measurements tomorrow.

The S10's had an optional dual diaphram booster that is aproximately 9" in diameter. It is identified with the RPO code of JM3 or JM5. This booster is similar to the '67-'70 C20/30 boosters.

The diameter of the compatable boosters varies by application. I do not have a listing of those measurements.

The distance the booster is from the firewall has absolutely no bearing on the leverage applied by the brake pedal


Quote:
Originally Posted by Jimbabwe View Post
Captainfab,
What is the depth of your bracket top and bottom?

Would the use of the '88-98 S10 (or similar) booster be essentially the same additional power as a 3/4 or 1 ton booster? It's just a matter of it being dual diaphragm?

Do you know the diameter of the boosters you recommend?

Does having the booster closer to the firewall lessen the stopping power of the power assembly because the arm is shorter and therefore has less leverage?

I ask because, before coming across your bracket, I was wondering why I couldn't just mount the booster directly to the firewall. I'm just thinking it looks better without that deep, ugly bracket, and I'm running the straight six with the stock air cleaner, so I need the clearance. I hate the look of the offset I6 air cleaner that puts it over the valve cover...hate it. Your bracket may be the way to go if I can make sure I'll have the air cleaner and throttle cable clearance (because of the I6). I'm using a Lokar floor shifter, so the column shift is not an issue.
Sorry for the twenty questions!
Thanks.
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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
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Old 05-10-2012, 01:39 AM   #3
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Re: Power Brake Booster Adapter Bracket

I thought there was a post saying there was a problem with column shift and for some reason I was thinking automatic not manual.
Just to make sure it has the bugs work out.
I'm going to get one

Do you use the 71 proportioning valve with the 2000 s10 master / booster?
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Old 05-11-2012, 12:10 AM   #4
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Re: Power Brake Booster Adapter Bracket

Yes there is a problem with the column shift. The shift lever hits most of the boosters that are used. Sounds like mmmBoost has an idea how to overcome the issue, but it sounds like he has not done it yet.

When I designed this booster bracket, I was working on a 4 speed truck that was going to be a floor shifter automatic. It did not dawn on me until after a member bought ont, that there was a problem with the column shifted trucks. Apparently this is why the factory brackets locate the booster so far from the firewall.

You can use any disc/drum proportioning valve and master with any of the compatable boosters.


Quote:
Originally Posted by Racinaround View Post
I thought there was a post saying there was a problem with column shift and for some reason I was thinking automatic not manual.
Just to make sure it has the bugs work out.
I'm going to get one

Do you use the 71 proportioning valve with the 2000 s10 master / booster?
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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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Old 05-10-2012, 01:51 AM   #5
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Re: Power Brake Booster Adapter Bracket

I'm going to cut a V the shift lever under the booster and cock it over so it doesn't hit the booster and then just cut the linkage bar to fit. So instead of it being straight it'll lean inboard at the top. I'll post pics when I get mine done.
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Old 03-29-2013, 08:52 AM   #6
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Re: Power Brake Booster Adapter Bracket

Quote:
Originally Posted by mmmBoost View Post
I'm going to cut a V the shift lever under the booster and cock it over so it doesn't hit the booster and then just cut the linkage bar to fit. So instead of it being straight it'll lean inboard at the top. I'll post pics when I get mine done.
Did you ever get around to the mod of your shift lever to see if that works?
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Old 02-03-2013, 02:30 AM   #7
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Re: Power Brake Booster Adapter Bracket

This will be a must when I am ready. Are you going to continue producing these?
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Old 02-03-2013, 03:11 AM   #8
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Re: Power Brake Booster Adapter Bracket

Yes, I plan on continuing to fabricate these.
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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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Old 02-03-2013, 01:07 PM   #9
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Re: Power Brake Booster Adapter Bracket

Thanks!
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Old 03-29-2013, 09:10 AM   #10
faribran
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Re: Power Brake Booster Adapter Bracket

Captainfab,
i purchased one of these brackets.. it works great.. i have a 3 on the tree manual.. i used the booster/MC from an Astro van.. i think i recall trimming the linkage a bit, but a little adjusting and it works like a charm.
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Old 03-29-2013, 09:23 AM   #11
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Re: Power Brake Booster Adapter Bracket

Quote:
Originally Posted by faribran View Post
Captainfab,
i purchased one of these brackets.. it works great.. i have a 3 on the tree manual.. i used the booster/MC from an Astro van.. i think i recall trimming the linkage a bit, but a little adjusting and it works like a charm.
Do you know the size of your booster? Want to see if this will work for me..thanks
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Old 04-02-2013, 10:40 PM   #12
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Re: Power Brake Booster Adapter Bracket

Quote:
Originally Posted by smartass12 View Post
Do you know the size of your booster? Want to see if this will work for me..thanks
I actually ended up just grabbing a big A55 cresent wrench and bent it towards the front. It clears now but still have to get another linkage bar to see if it'll fit
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Old 05-25-2013, 10:36 AM   #13
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Re: Power Brake Booster Adapter Bracket

Got mine mounted with auto. Steering column, looks way better.
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Old 05-25-2013, 10:39 AM   #14
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Re: Power Brake Booster Adapter Bracket

Here's another view.
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Old 03-29-2013, 03:19 PM   #15
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Re: Power Brake Booster Adapter Bracket

i can measure it tonite.. and advise.
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Old 03-30-2013, 08:14 PM   #16
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Re: Power Brake Booster Adapter Bracket

It appears to be 9in at largest diameter. I recall the end off one of the shift rods made contact with it but I trimmed it a minor amont
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Old 09-10-2013, 02:30 PM   #17
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Re: Power Brake Booster Adapter Bracket

if you can...please look at my set up on my brakes. it is 1968 with front disc brake conversion on it when I bought truck so I am in the dark about specifics. I am wondering if the bracket that you offer would work for me and what would I gain if used it other than giving me a more cleaner more spacious look under hood. thank a lot. your product looks great.
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Old 09-10-2013, 02:32 PM   #18
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Re: Power Brake Booster Adapter Bracket

if I used your bracket what would I have to change other than the push rod length? and whats the proper measuring technuiq for this?
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Old 09-11-2013, 12:02 AM   #19
Captainfab
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Re: Power Brake Booster Adapter Bracket

Since you already have power brakes, all you will gain is looks and room. When lengthening the booster pushrod, it just needs to be done in such a way so that it is long enough, and still has adjustment available. There are a few different ways to go about it.

Here are a couple ways:

http://www.67-72chevytrucks.com/vboa...&postcount=324

http://www.67-72chevytrucks.com/vboa...d.php?t=564518
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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

Last edited by Captainfab; 09-11-2013 at 12:08 AM.
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Old 10-07-2013, 11:18 AM   #20
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Re: Power Brake Booster Adapter Bracket

Pm sent.
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Old 10-08-2013, 12:34 AM   #21
Captainfab
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Re: Power Brake Booster Adapter Bracket

I replied to your PM

Quote:
Originally Posted by Rochlow View Post
Pm sent.
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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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Old 12-05-2013, 10:39 PM   #22
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Re: Power Brake Booster Adapter Bracket

PM sent
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----------------------------------
1979 C10 Silverado Big10 SWB
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Old 12-06-2013, 12:53 AM   #23
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Re: Power Brake Booster Adapter Bracket

Reply sent

Quote:
Originally Posted by Bowtie468 View Post
PM sent
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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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Old 12-06-2013, 09:51 PM   #24
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Re: Power Brake Booster Adapter Bracket

PayPal sent. ! Thx
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----------------------------------
1979 C10 Silverado Big10 SWB
Factory 454/400
Cardinal Red/Santa Fe Tan (original paint)

1968 C10 SWB Fleetside (Sold)
468BBC MultiPort TPI / Dynamic EFI P4
Black/Black

1963 Nova SS convertible (Sold)
194 I6/ PowerGlide
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Old 12-07-2013, 01:33 PM   #25
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Re: Power Brake Booster Adapter Bracket

do you offer any rear disc brake conversion bracket kits? or any tips on a conversion using found parts from typical salvage yard vehicles?
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