Rear brake drums to caliper upgrade

[Mrich0908]

My vehicle is a 98 Yukon 5.7 sbc 4x4 .
I own a small CNC shop. I was looking at rear caliper conversion kits. The adapter plates look easy enough to mill on the CNC.
I have a question for you guys that already have have done a upgrade like this. Do you know what replacement calipers most kits are , your kit is using?
Ive all ready figured out the master cylinder. I was guessing most were using ( that use a stock style caliper) 2000 -2013 gmc calipers and rotors on the rear.
Figured Ide ask open up a discussion.
Edit I just realized I put this in the wrong section sorry ....

 

[454cid]

The kit's are designed to use Squarebody front calipers and rotors, I believe....... or 70's Cadillac calipers if you need an emergency brake, but I've read they're not really up to the job.

 

[Mrich0908]

Thanks ,
Give me something to look into.
I would like to retain e-brake .
I would of assumed since the stock size calipers were meant to fit into the wheel well of the newer trucks (00-13) they would do the same on my generation.
I was looking at EGRs kit .
http://www.circletracksupply.com/rear-disc-brake-conversion-kits-for-gm-models.html

 

[phlegm]

I don't know anything about the kits, but on another forum I am working on my own front disk brake conversion and it utilizes dimensions from an off the shelf/standard weld on type bracket.

Measurements and initial prototypes
Big Cheap Brake Conversion -- My Photobucket Collection of Pictures
These are the basic dimensions of the weld on bracket.

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The dimesions that I forgot to write/note on the drawing.
The flat spots are 5/8" long and they are 3.8" apart (from inside flat to inside flat). The caliper mount bolts are 5.50" apart.

I'm a fairly simple minded fella, but by my reconing you need a few more pieces of information.
Backing plate bolt pattern for the stock axle
Rotor diameter

And you should be able to get the disk brakes working.. then you need to figure out the e-brake situation.

The bracket I measured was borrowed from my neighbor, a few years back he used to race circle dirt oval track.
When he was building/rebuilding his own rearends, he used this caliper with an air nozzle, and loaded the caliper with fresh pads, applied air to the caliper, then tacked/welded the bracket onto the axle.

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This is where the original idea for mine came from
Cheap Big Brakes Mustang/Falcon -- Ford Muscle Forum

I saw your post in the fabrication thread, I've got at least one machined part that I'd like to run past you. I work in IT for a company that has a CNC Plasma table, so in that last picture you see some of my other projects.

 

[Mrich0908]

Hey ,
Shoot me an email if you would like to talk privately . My email is my screen name at gmail.
Thanks for the links im going to check them out now.
Plasma is great for 2d parts. Easy to run program also.
Mark