Jump to content

Looking at disc conversion


Jj1981

Recommended Posts

Yes, contact Charlie at olddaddy@rustyhope.com

He has a great kit with detailed instructions and parts list.

You will also want to figure out a way to put a dual chamber master cylinder in.

I did it 2 different ways on 2 different trucks. On the firewall is pretty easy and works well, but is obvious and ugly. 

Better is to put it under the cab with a bracket:

IMG_1761.jpg.44bd417409a138e67726431cecc9823a.jpg

You can use the original pedal if you add a piece.  For more pictures see my blog: http://dogwalkfinds.blogspot.com/2017/02/projects-update-02242017.html

 

  • Like 1
Link to comment
Share on other sites

I modified the bracket from one of these kits:

http://www.ebay.com/itm/1937-1948-Chevy-Car-Disc-Drum-Power-Brake-Booster-Frame-Mount-Pedal-Assembly-Kit-/141495487626

I had to make a plate to go on my pedal that extends down a little to actuate the cylinder the opposite way.

59be83efe8915_IMG_1735(1).jpg.f83198dd957bb502e7d7290a71a4b43e.jpg

The master cylinder is the one from the kit which is the "corvette style" 1" bore. The front and rear reservoirs are the same size. These seem pretty common, the number on my box was GH3511. 

The 7" booster is as big as you can go with the space available. 

Those residual pressure valves seem to work pretty well, too..

The only part of the kit I didn't use (besides the pedal and some chunks of the bracket) was the proportioning valve. I did put in a proportioning valve in the rear circuit (http://www.speedwaymotors.com/Speedway-Purple-Adjustable-Brake-Proportioning-Valve,23498.html), but the one that comes in the kit tends to leak, is hard to get in there and is not adjustable. 

I used a junction block like this one (http://www.ebay.com/itm/972054ERL-Earls-Performance-3-8-24-Inverted-Flare-On-Branch-Tee-Brake-Adapter-/231932545684?epid=1711820529&hash=item360041ca94:g:uKoAAOSw5HJXKRtY&vxp=mtr  ) to tie the front brakes together .

One last thing to keep in mind is you'll need to change how your switch works. I used one of these: https://www.chevsofthe40s.com/detail/19787/Brake_Light_Switch.html

Which are sold by lots of places, but quality is not always the best.

but you could also do it like this https://www.performanceonline.com/Brake-Light-Switch-with-Fitting/ and not change your wiring (much).

 

  • Like 1
Link to comment
Share on other sites

12 hours ago, motterso said:

I modified the bracket from one of these kits:

http://www.ebay.com/itm/1937-1948-Chevy-Car-Disc-Drum-Power-Brake-Booster-Frame-Mount-Pedal-Assembly-Kit-/141495487626

I had to make a plate to go on my pedal that extends down a little to actuate the cylinder the opposite way.

59be83efe8915_IMG_1735(1).jpg.f83198dd957bb502e7d7290a71a4b43e.jpg

The master cylinder is the one from the kit which is the "corvette style" 1" bore. The front and rear reservoirs are the same size. These seem pretty common, the number on my box was GH3511. 

The 7" booster is as big as you can go with the space available. 

Those residual pressure valves seem to work pretty well, too..

The only part of the kit I didn't use (besides the pedal and some chunks of the bracket) was the proportioning valve. I did put in a proportioning valve in the rear circuit (http://www.speedwaymotors.com/Speedway-Purple-Adjustable-Brake-Proportioning-Valve,23498.html), but the one that comes in the kit tends to leak, is hard to get in there and is not adjustable. 

I used a junction block like this one (http://www.ebay.com/itm/972054ERL-Earls-Performance-3-8-24-Inverted-Flare-On-Branch-Tee-Brake-Adapter-/231932545684?epid=1711820529&hash=item360041ca94:g:uKoAAOSw5HJXKRtY&vxp=mtr  ) to tie the front brakes together .

One last thing to keep in mind is you'll need to change how your switch works. I used one of these: https://www.chevsofthe40s.com/detail/19787/Brake_Light_Switch.html

Which are sold by lots of places, but quality is not always the best.

but you could also do it like this https://www.performanceonline.com/Brake-Light-Switch-with-Fitting/ and not change your wiring (much).

 

Interesting -  Good stuff - Thanks 

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.

Terms of Use