adding booster
 

i have a 70 gmc with drums all the way around and no power breaks. well i bought a booster and want to start puttng it on what all do i need to do to do so? do i have to change to disk in the front? please help me out so i can get her on the road for spring.. thanks

also let me know if i need to buy anything else and pics are always a pluse

Re: adding booster
 

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No, you don't have to change to disks. I don't know what year your booster unit is off of or what setup it had, but you have to make sure you have the correct proportioning valve for the drum brakes.

LockDoc

Re: adding booster
 

I was able to junkyard my booster set up (booster, mounting bracket, pushrod).

The junk booster was used for a core, and purchased another '70 booster from the local auto parts store. If I remember correctly, my set up came from a '69. Anyways, my master cylinder fit the booster (as it should since both the power and non-power brakes use the same master cylinder). I did need to adjust the linkage from the brake pedal to the booster, and needed to bend my brake lines a little bit because of the longer length from the firewall to cylinder. I'm still running drums at all four corners.

I will try to snap some pics today of it.

Re: adding booster
 

you will need booster/master cylinder, bracket and linkage for booster, rebend your brake lines and proper proporting valve. I just completed mine last week on my 68. It was easy

Re: adding booster
 

i have drums all the way around and added a booster. My brake lines were so rusted that the added pressure blew holes right through the rusted area of the lines. i was so happy that i discovered this in the garage rather than when trying to stop. i then replaced all lines and booster works great...what a difference!...i bought a booster off the board.

Re: adding booster
 

Here are a few pics of mine (sorry I'm a day late). It was pretty much a direct bolt-in install. I just removed the master cylinder from the firewall, installed the bracket and booster, then mounted the master cylinder to the booster. Never broke open a line.

http://67-72chevytrucks.com/vboard/p...pictureid=6447

http://67-72chevytrucks.com/vboard/p...pictureid=6446

http://67-72chevytrucks.com/vboard/p...pictureid=6444

http://67-72chevytrucks.com/vboard/p...pictureid=6445

Re: adding booster
 

ok thanks for all the info on how u guys did this im new to the truck building world.

also sweet7t ur pics never showed up just so u know but i will give this a try and see what happens

Re: adding booster
 

Do they work now? If not, just go to my albums (click on my name). I accidentally had the album set to private. I logged out and could still see them...