24-03-2012, 04:30 PM
Disc Brake
discbrake.doc (Size: 50.5 KB / Downloads: 92)
GMC Disc Brake Modification
Go to GMC Western States Home Page www.gmcws.org and look under tech info or vendor listing. They have a listing for disc brake conversion for #$580 per axle. They use 11" discs and GM calipers. It is done by a firm with a good rep in the Hot Rod scene. Looks like a winner
to me. I have done Leigh Harrisons conversion on my front and center axles, but for the two new tranmodes I will be doing the system from Colorado because of price and ease of install.
Rear disc brakes
I would like to know what vehicle(s) in the salvage yards would work as donors for a set of rear disc brakes for my 1976 Glenbrook. I think that El Dorado rear calipers and backing plates is what I need. I was out to one of the local salvage yards the other day and they seem to have several possible donors. I need to check out my rear brakes and thought I would start gathering up parts to convert to disc on all 6 wheels this winter.
GMC: Rear disc brakes
Russ:
The parts you are looking for, backing plate primarily, comes from the 76-78 Cadillac El Dorado REAR AXLE ONLY. There is some machine work required to enlarge the center opening so that it will fit over the coach axle and butt up to the arm.
Bobby Moore from Louisville KY (502-964-6416) gave a seminar on use of the backing plates at the New Hampshire GMC MI Rally last September. His handout had all the information on what components to obtain and the required machining to have done. Using a rebuilt P-30 chassis master cylinder and 2-1/2" calipers, machining, etc., the system would cost approximately $2100 to do the four rear wheels.
GMC: How much real improvement with Disc Brakes on the rear?
AT our last GMC Heritage Cruiser rally in Kingston Canada, several of the members were suggesting a change to the carbon metallic disks in front, and a special asbestos lined brake for the rear, with the addition of the Powermaster brake unit to replace the original master cylinder and booster. They claim that this conversin really makes the coach stand on end! Maybe
one of the members will read this, I know Al Hamilton does and can give the particulars..,As usual my mind was on something else I was working on and I did not get all of the details, only enough to know who to ask when I start. I already have the powermaster unit, found in Auto parts yard for $10.
discbrake.doc (Size: 50.5 KB / Downloads: 92)
GMC Disc Brake Modification
Go to GMC Western States Home Page www.gmcws.org and look under tech info or vendor listing. They have a listing for disc brake conversion for #$580 per axle. They use 11" discs and GM calipers. It is done by a firm with a good rep in the Hot Rod scene. Looks like a winner
to me. I have done Leigh Harrisons conversion on my front and center axles, but for the two new tranmodes I will be doing the system from Colorado because of price and ease of install.
Rear disc brakes
I would like to know what vehicle(s) in the salvage yards would work as donors for a set of rear disc brakes for my 1976 Glenbrook. I think that El Dorado rear calipers and backing plates is what I need. I was out to one of the local salvage yards the other day and they seem to have several possible donors. I need to check out my rear brakes and thought I would start gathering up parts to convert to disc on all 6 wheels this winter.
GMC: Rear disc brakes
Russ:
The parts you are looking for, backing plate primarily, comes from the 76-78 Cadillac El Dorado REAR AXLE ONLY. There is some machine work required to enlarge the center opening so that it will fit over the coach axle and butt up to the arm.
Bobby Moore from Louisville KY (502-964-6416) gave a seminar on use of the backing plates at the New Hampshire GMC MI Rally last September. His handout had all the information on what components to obtain and the required machining to have done. Using a rebuilt P-30 chassis master cylinder and 2-1/2" calipers, machining, etc., the system would cost approximately $2100 to do the four rear wheels.
GMC: How much real improvement with Disc Brakes on the rear?
AT our last GMC Heritage Cruiser rally in Kingston Canada, several of the members were suggesting a change to the carbon metallic disks in front, and a special asbestos lined brake for the rear, with the addition of the Powermaster brake unit to replace the original master cylinder and booster. They claim that this conversin really makes the coach stand on end! Maybe
one of the members will read this, I know Al Hamilton does and can give the particulars..,As usual my mind was on something else I was working on and I did not get all of the details, only enough to know who to ask when I start. I already have the powermaster unit, found in Auto parts yard for $10.