| |
Click on image for the lowdown. 
====
| | | Forums66 Topics128,175 Posts1,057,055 Members48,460 | | Most Online14,466
Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
| | THANKS!
For helping keep this great
old truck web site
on the Internet for over 30 years! and not clogged down
with Ads!  Again, thanks!
| | | | Joined: Aug 2011 Posts: 154 Shop Shark | | Shop Shark Joined: Aug 2011 Posts: 154 | Finally finished putting in a new mc and lines. Bled the brakes and have no leaks. Took the truck for a ride and noticed that I have to press the brake pedal almost to the floor to get the truck to stop. Like a dummy, I don't remember how far I had to press the pedal before the repair job. I've read a couple articles that say with the old trucks you sometimes had to push the pedal to the floor, but I just can't believe that is supposed to be the case. Truck does stop, just not sure if the travel of the brake pedal is normal.
And I'm taking the truck to a pro to have him inspect my work and check everything.
Any thoughts or advice on this is appreciated.
1955 GMC 100 Series 2
| | | | | Joined: Jan 2010 Posts: 4,263 Shop Shark | | Shop Shark Joined: Jan 2010 Posts: 4,263 | what kind of truck?
any modifications besides the new mc and lines?
| | | | | Joined: Aug 2011 Posts: 154 Shop Shark | | Shop Shark Joined: Aug 2011 Posts: 154 | 55.2 on a '78 blazer frame
Single MC
Drums and brakes are from a '78 Blazer and new wheel cylinders were installed in August.
**Already planning on a dual MC build this fall, I could kick myself for not seeing Cletis' write up before starting my brake project"
1955 GMC 100 Series 2
| | | | | Joined: Feb 2000 Posts: 988 'Bolter | | 'Bolter Joined: Feb 2000 Posts: 988 | Firm pedal or spongy? If firm I would look at adjusting the brakes. Spongy I would bleed the brakes until Firm.
Brian Moore
1949 3100 5 window Deluxe
"Today is better than yesterday, but not as good as tomorrow"
| | | | | Joined: Jun 2004 Posts: 8,597 Riding in the Passing Lane | | Riding in the Passing Lane Joined: Jun 2004 Posts: 8,597 | A 78 Blazer will have disc brakes on the front. It must have a dual master cyl. to work right.
They say money can't buy happiness. It can buy old Chevy trucks though. Same thing. 1972 Chevy c10 Cheyenne SuperIn the Gallery Forum | | | | | Joined: Aug 2011 Posts: 154 Shop Shark | | Shop Shark Joined: Aug 2011 Posts: 154 | This truck has a drum/drum configuration. (it was built by my father-in-law in the 1980's and they did a lot of their own, ummmm, modifications...)
Going to adjust all the brakes tonight and see if that helps. Having a pro look at it as well.
1955 GMC 100 Series 2
| | | | | Joined: Mar 2010 Posts: 10,301 Renaissance Man | | Renaissance Man Joined: Mar 2010 Posts: 10,301 | Good plan on having a pro look at it. Make sure to get details as to what he did to fix it so you can do it yourself the next time. We'd like to know too.
Carl
1952 5-window - return to "as built" condition | 1950 3100 with a 235 and a T-5 transmission
| | | | | Joined: Aug 2011 Posts: 154 Shop Shark | | Shop Shark Joined: Aug 2011 Posts: 154 | **UPDATE**
Just got the truck back from the shop. They adjusted all 4 brake drums. The front drums needed the most adjustment and since I put new parking brake cables on, that required the rear drums to be adjusted as well. Travel on the brake pedal is MUCH shorter and much firmer. It was well worth the $80.
1955 GMC 100 Series 2
| | |
|
|
| |
