Installing Power Brakes in a 75?
05-05-2016, 01:11 PM
#1
Installing Power Brakes in a 75?
Outside of the obvious booster, caliper and obvious outer parts, do I have to install a different brake hanger or brake hanger with pedal?
I have gotten the parts that I have as singles and not as one of the kits. The kits make no mention of this. I was told by someone.
I have gotten the parts that I have as singles and not as one of the kits. The kits make no mention of this. I was told by someone.
05-05-2016, 01:45 PM
#2
Caliper? There is no difference, perhaps you meant master cylinder? No change in the brake pedal either.
05-05-2016, 04:14 PM
#3
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All you need is the booster master cylinder, the master cylinder to brake block lines possibly and the bracket that pushes the brake lamp switch. (which must be moved to the other hole on the brake pedal).
I did this write up somewhere around March of this year and again in 2008. Hope it helps.
Keep in mind; I’m doing this from memory so if anyone wants to add to this feel free!
You will need both the power brake booster and a new master cylinder. Power brake and standard brake master cylinders are different.
The cars with standard brakes have two studs on the firewall; you will need to knock these out of the firewall (they will fall inside the car).
Then using the two upper holes from the studs as a guide, mark the lower holes and drill them for the lower booster holes.
Once you do this, you’ll need to enlarge the hole in the firewall for the rod from the power brake booster. Yes it bolts to a different position on the pedal but doing this is real easy. If you look under your dash you’ll see a round hole on a non power brake car. On a power brake car it was egg looking. The inside reinforcement can be used as a template since it was used on both cars it has the egg look so just follow this when cutting, if you look under the dash you’ll see what portion of the fiberglass you’ll need to remove.
The standard brake and power brake lamp switch bracket were different, the power brake one is now available new. http://willcoxcorvette.com/product_i...ducts_id=12540
Hope this helps, I used to have a detailed sheet somewhere on this when we did a conversion many. .. Many years ago. If I can find this I’ll post it for you.
You can see in this picture the glass that must be removed.
18243
Willcox Inc.
I did this write up somewhere around March of this year and again in 2008. Hope it helps.
Keep in mind; I’m doing this from memory so if anyone wants to add to this feel free!
You will need both the power brake booster and a new master cylinder. Power brake and standard brake master cylinders are different.
The cars with standard brakes have two studs on the firewall; you will need to knock these out of the firewall (they will fall inside the car).
Then using the two upper holes from the studs as a guide, mark the lower holes and drill them for the lower booster holes.
Once you do this, you’ll need to enlarge the hole in the firewall for the rod from the power brake booster. Yes it bolts to a different position on the pedal but doing this is real easy. If you look under your dash you’ll see a round hole on a non power brake car. On a power brake car it was egg looking. The inside reinforcement can be used as a template since it was used on both cars it has the egg look so just follow this when cutting, if you look under the dash you’ll see what portion of the fiberglass you’ll need to remove.
The standard brake and power brake lamp switch bracket were different, the power brake one is now available new. http://willcoxcorvette.com/product_i...ducts_id=12540
Hope this helps, I used to have a detailed sheet somewhere on this when we did a conversion many. .. Many years ago. If I can find this I’ll post it for you.
You can see in this picture the glass that must be removed.
18243
Willcox Inc.
Last edited by Willcox Corvette; 05-05-2016 at 04:16 PM.
05-06-2016, 05:35 AM
#4
The link reverts me to the main page. I searched the terms and parts of and got nothing. I did a web search and came across a 1969-1975 Brake Light Switch Striker. W/Power Brake on CA's website. I then changed the terms on your site and it came up. The zinc plated bracket for 14.95... https://willcoxcorvette.com/corvette...er-brake-69-75
The funny thing is when I did the prior random searches the non power on appeared.
LMK if this is the part
The funny thing is when I did the prior random searches the non power on appeared.
LMK if this is the part
05-06-2016, 05:49 AM
#5
The link reverts me to the main page. I searched the terms and parts of and got nothing. I did a web search and came across a 1969-1975 Brake Light Switch Striker. W/Power Brake on CA's website. I then changed the terms on your site and it came up. The zinc plated bracket for 14.95... https://willcoxcorvette.com/corvette...er-brake-69-75
The funny thing is when I did the prior random searches the non power on appeared.
LMK if this is the part
The funny thing is when I did the prior random searches the non power on appeared.
LMK if this is the part
05-06-2016, 10:39 AM
#6
Former Vendor
Member Since: Aug 2006
Location: Jeffersonville Indiana 812-288-7103
Posts: 76,656
Received 1,813 Likes
on
1,458 Posts
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15
The post above is very old, we re-vamped the website last April and all the links changes.. Here is the current link for the bracket.
https://willcoxcorvette.com/corvette...er-brake-69-75
https://willcoxcorvette.com/corvette...er-brake-69-75
05-07-2016, 05:00 PM
#7
The pin with bracket joint thing for the booster mounts in a different slot on the pedal. I think its the lower one with power. Also, cant remember if it needs a different joint to thread onto the booster pin to the cabin. I think it might.