Power booster conversion? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

spencra · 01-21-2004, 10:09 AM

I just pulled a power brake booster from my brother in laws old blazer, I believe it's a 77. Of course my 67 has manual brakes and does not have the same bolt up pattern. What do you guys do to mount the booster.
I was thinking of spot welding it to the firewall, but if it goes getting it off won't be fun to remove.
I was also thinking of cutting the mounting plate off of the blazer and welding that into my truck.
I don't know. What is the easiest way to go about this and what else am I going to have to convert to make this work.

Thanks guys (and girls)

spencra · 01-21-2004, 11:00 AM

ttt

spencra · 01-21-2004, 01:08 PM

ttt

anybody?

sider68 · 01-21-2004, 01:22 PM

On my 67 I bought a power booster that fit and it bolted right up.Still have the 4 drum brakes but I don,t have to push the pedal right to the floor to get it to stop.

**CPNE** · 01-21-2004, 01:22 PM

Okay, I understand the cost factor, but it would be much easier (time=$) to purchase the correct booster firewall bracket and pedal rod. A drum brake setup for 1/2 ton or 3/4 ton will work and should be readilly available. You also get the added benefit of not having to remeber what year the part is when replacing or mixing/matching parts. This of course assumes that your goal is to have power brakes and you are NOT trying to fabricate a flush mount booster to clean up your firewall.

This does not address your question but is simply advice from someone whos been there and done that.

spencra · 01-21-2004, 01:52 PM

Thanks alot CPNE. I didn't realize that they even sold the power booster firewall bracket. Very helpful, Thanks again.

**CPNE** · 01-21-2004, 02:05 PM

I think I've seen it repo'd but used will do. Just make sure you get the complete setup including rod to pedal. Your manual brake rod won't work. Post a WTB on the parts board.

spencra · 01-21-2004, 03:58 PM

I took the brake rod and everything exept for the brake pedal and arm itself. I hope the brake rod matches up with my stock brake assembly.

01-21-2004, 10:09 AM	#1
spencra This, is my BOOMSTICK! Join Date: Oct 2003 Location: Berlin, CT Posts: 1,310	Power booster conversion? I just pulled a power brake booster from my brother in laws old blazer, I believe it's a 77. Of course my 67 has manual brakes and does not have the same bolt up pattern. What do you guys do to mount the booster. I was thinking of spot welding it to the firewall, but if it goes getting it off won't be fun to remove. I was also thinking of cutting the mounting plate off of the blazer and welding that into my truck. I don't know. What is the easiest way to go about this and what else am I going to have to convert to make this work. Thanks guys (and girls) __________________ Larry Got rid of my projects for now. 1980 Jeep CJ7 1998 Nissan Sentra (my car) 2001 Toyota Sienna (wife's, of course)

01-21-2004, 11:00 AM	#2
spencra This, is my BOOMSTICK! Join Date: Oct 2003 Location: Berlin, CT Posts: 1,310	ttt __________________ Larry Got rid of my projects for now. 1980 Jeep CJ7 1998 Nissan Sentra (my car) 2001 Toyota Sienna (wife's, of course)

01-21-2004, 01:08 PM	#3
spencra This, is my BOOMSTICK! Join Date: Oct 2003 Location: Berlin, CT Posts: 1,310	ttt anybody? __________________ Larry Got rid of my projects for now. 1980 Jeep CJ7 1998 Nissan Sentra (my car) 2001 Toyota Sienna (wife's, of course)

01-21-2004, 01:22 PM	#5
CPNE Resident Curmudgeon Join Date: Dec 1999 Location: NH Posts: 6,662	Okay, I understand the cost factor, but it would be much easier (time=$) to purchase the correct booster firewall bracket and pedal rod. A drum brake setup for 1/2 ton or 3/4 ton will work and should be readilly available. You also get the added benefit of not having to remeber what year the part is when replacing or mixing/matching parts. This of course assumes that your goal is to have power brakes and you are NOT trying to fabricate a flush mount booster to clean up your firewall. This does not address your question but is simply advice from someone whos been there and done that. __________________ Currently on or near the homestead: 67 Chevy SWB 2WD stepside 350/3 on tree (Pat's) 67 GMC SWB 2WD Fleet 402/auto (Brian's under construction) 67 Chevy 3/4 ton 2WD 402/auto (Business Hauler) 67 Chevy 1 ton dually 2WD 396/4 speed (Former business hauler, Needs TLC) 68 Chevy 1/2 ton Suburban 2WD 250 six/3 on tree (Brian's Needs TLC) 70 Chevy 3/4 ton 4WD 350/4 speed (Pat's - Disguised as a 68 GMC) 71 Chevy SWB stepside (Crushed by tree - parts donor) 72 Chevy 3/4 ton 4WD (Parts donor) 72 Chevy 3/4 ton 4WD Suburban (Parts Donor) 72 GMC 3/4 ton 4WD 292 six/4 speed (Mine - Disguised as a 67 GMC) 81 GMC 4WD Dually Dump Body 350/4 speed (Business Hauler) 82 Camaro Z/28 355/Super T-10 (Pat's toy) 93 Caprice 9C1 (Brian's Cop Car) 02 Toyota Camry (Reliable but a souless steel and plastic hulk) 2011 2SS RS Camaro M6 Factory Hurst Shifter Maybe I need to sell some of this crap Yet another Bozo with a sawz-all

01-21-2004, 01:52 PM	#6
spencra This, is my BOOMSTICK! Join Date: Oct 2003 Location: Berlin, CT Posts: 1,310	Thanks alot CPNE. I didn't realize that they even sold the power booster firewall bracket. Very helpful, Thanks again. __________________ Larry Got rid of my projects for now. 1980 Jeep CJ7 1998 Nissan Sentra (my car) 2001 Toyota Sienna (wife's, of course)

01-21-2004, 01:22 PM	#4
sider68 Registered User Join Date: Mar 2002 Location: newmarket,ontario,canada Posts: 936	On my 67 I bought a power booster that fit and it bolted right up.Still have the 4 drum brakes but I don,t have to push the pedal right to the floor to get it to stop.

01-21-2004, 02:05 PM	#7
CPNE Resident Curmudgeon Join Date: Dec 1999 Location: NH Posts: 6,662	I think I've seen it repo'd but used will do. Just make sure you get the complete setup including rod to pedal. Your manual brake rod won't work. Post a WTB on the parts board. __________________ Currently on or near the homestead: 67 Chevy SWB 2WD stepside 350/3 on tree (Pat's) 67 GMC SWB 2WD Fleet 402/auto (Brian's under construction) 67 Chevy 3/4 ton 2WD 402/auto (Business Hauler) 67 Chevy 1 ton dually 2WD 396/4 speed (Former business hauler, Needs TLC) 68 Chevy 1/2 ton Suburban 2WD 250 six/3 on tree (Brian's Needs TLC) 70 Chevy 3/4 ton 4WD 350/4 speed (Pat's - Disguised as a 68 GMC) 71 Chevy SWB stepside (Crushed by tree - parts donor) 72 Chevy 3/4 ton 4WD (Parts donor) 72 Chevy 3/4 ton 4WD Suburban (Parts Donor) 72 GMC 3/4 ton 4WD 292 six/4 speed (Mine - Disguised as a 67 GMC) 81 GMC 4WD Dually Dump Body 350/4 speed (Business Hauler) 82 Camaro Z/28 355/Super T-10 (Pat's toy) 93 Caprice 9C1 (Brian's Cop Car) 02 Toyota Camry (Reliable but a souless steel and plastic hulk) 2011 2SS RS Camaro M6 Factory Hurst Shifter Maybe I need to sell some of this crap Yet another Bozo with a sawz-all

01-21-2004, 03:58 PM	#8
spencra This, is my BOOMSTICK! Join Date: Oct 2003 Location: Berlin, CT Posts: 1,310	I took the brake rod and everything exept for the brake pedal and arm itself. I hope the brake rod matches up with my stock brake assembly. __________________ Larry Got rid of my projects for now. 1980 Jeep CJ7 1998 Nissan Sentra (my car) 2001 Toyota Sienna (wife's, of course)



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