Just an FYI Cadillac calipers with parking brake option wont work with that spacing.

3110

3121

 

Well thats not an issue at all. I would just modify my existing drawing to accommodate the parking brake caliper. Maybe I will get one of the calipers from CAP and take all the measurments I would need. I don't know what rotors they use either. I'm going to get the K1500 brackets made before I do all that research

 

There's companies that make a parking brake that mounts on the drive shaft. Google "drive shaft parking brake"

 

Yea like I said before. It's just not on my radar right now. I need to finish one project before moving into another one. When it comes time, I'll do the research and figure out what kind of brake would work best with this swap.

 

Thought I would update this thread. I've been daily driving the truck for the last week after installing a hydrobooster. I'd say the hydroboost really puts these brackets to the test. Obviously I have a lot more braking power over the vacuum assist. Everything has held up perfectly.

I'm more than happy with how the swap turned out and glad I didn't go with the drum swap like I planned to do in the beginning of this thread. Thanks for everyones help in the process! That is why I love this site. A bunch of good guys in here with the same interests.

I'm selling the brackets in the member made section if anyone is interested. One pair has sold, one pending and I have another pair ready to ship. I will be ordering more and it looks like they take about a week to be cut. I also have the fittings and hose to build stainless steel brake lines for this swap so if interested send me a PM! Thanks again guys

https://www.performancetrucks.net/fo...8/#post5241592

 

Just an update to add information to the thread, I did a little research on the 3500 caliper. It looks as if there are three calipers that are interchangeable with three different size pistons. However, I don't really see the need to go to the larger bore caliper on the rear of our trucks as the 1500 caliper (75mm) already has twice the apply area as the stock single piston rear (45mm) and slightly more than the 2x51mm piston front calipers. See the attached word doc for all the info I acquired...

 

So in your estimating, will this new brake setup actually give us more rear braking than what came stock? Does the larger piston outweigh the smaller rotor?

 

Any part numbers for the bigger caliper?

 

Kenneth, I just want to make sure you know the rotor in your notes is not the rotor I designed the brackets for. You will need the thinner rotor for my brackets. Make sure the rotor is 1" thick instead of the 1.25" thick one.

Good info you gathered in that document. What I'm worried about with the 3500 calipers though is the mounting bolts being the same dimension and the caliper piston not being centered over the rotor. With a bigger piston, you will have to move the caliper out to center the piston which will not allow 15" wheels with smaller inner diameters to be used. Not a deal breaker but I'd be interested to see someone try it. Looks like the pad dimensions will work with my brackets.

 

Today I was thinking about mirroring the bracket so I could run dual calipers for each rear wheel..... How overkill would that be??