Squarebody 73-87 Brake Upgrade

[buffydores]

I found plenty. I just changed my mind. My middle boy wants a square body suburban when he gets old enough. He's 10. In a couple of years, I'll get one and start working on it with him.

[buffydores]

Originally Posted by Ski-me

Nice info and thread. Are you saying a nice improvement over the original? I'm also running 35's and would be nice to slow it down a bit better.

Definitely do it. It's cheap. It works. I love these EBCs Ultimax 2 pads.

[Ski-me]

^^^ Cool, thanks!

[1968k20]

Originally Posted by buffydores

I found plenty. I just changed my mind. My middle boy wants a square body suburban when he gets old enough. He's 10. In a couple of years, I'll get one and start working on it with him.

I just picked up an 72 k10, 6.2, barn doors!

[1968k20]

Originally Posted by 1968k20

I just picked up an 72 k10, 6.2, barn doors!

Suburban

[Ski-me]

Originally Posted by buffydores

Definitely do it. It's cheap. It works. I love these EBCs Ultimax 2 pads.

Did you touch your master cylinder? I'm debating about swapping in a new one now.

My current MC is a 1-1/8" bore (18M217 or 19176456). Wondering if I went to a 1-1/4" bore (18M422 or 19176314).

My pedal still goes almost to the end when braking so think I may need to also replace my MC. New SS lines to calipers and also a new Vacuum Booster, from a few years ago.

My Blazer has the RPO code JB5.

[buffydores]

I did not change the master cylinder.

[Ziegelsteinfaust]

Originally Posted by Ski-me

Did you touch your master cylinder? I'm debating about swapping in a new one now.

My current MC is a 1-1/8" bore (18M217 or 19176456). Wondering if I went to a 1-1/4" bore (18M422 or 19176314).

My pedal still goes almost to the end when braking so think I may need to also replace my MC. New SS lines to calipers and also a new Vacuum Booster, from a few years ago.

My Blazer has the RPO code JB5.

A larger bore master cylinder will give you more brake at any one point of pedal travel. It will also be firmer due to displacement of said fluid.

It all comes down to personal taste. On how you like your truck set up

On my Camaro I used a smaller bore master to get more progressive feel out of it when I actually get to race it. Making corner braking much safer.

[Ziegelsteinfaust]

Wilwood makes a nice aluminium caliper for C10's. Its pricey, but looks good behind the right wheels.

[Morgsie]

Does anyone know if these 3/4 calipers are "low drag"? The 3/4 ton uses a cast master cylinder and my understanding is none of the squarebody cast iron master cylinders were quick take up. Which would mean the calipers are not low drag?

[naphtali5725]

i know, older thread... anyone here use these calipers with Mcgaughys 2.5 drop spindles with 1 1/4 rotors?

[chappys4life]

Looking to do this on my 78 and hoping to verify the part numbers:

- napa total eclipse 3 5/32" piston calipers CAL SE4674 & CAL SE4673
- napa pads CAL SE4674 (should i use ebc ultimax 2's? cannot find the right part)
- napa brake lines UP 38065 & UP 38066
- 2 banjo bolts for calipers