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post #1 of (permalink) Old 03-09-2005, 10:54 PM Thread Starter
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O/T GM 10 bolt drum to disk swap

Well its just that.. I am trying to find out what backing plates will fit the 10 bolt.

Or even all the parts. Im going to be towing the Jeep and i want 4 wheel disk..

Any help would be good.

Thanks..
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post #2 of (permalink) Old 03-10-2005, 04:08 PM Thread Starter
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Re: O/T GM 10 bolt drum to disk swap

Nothing?
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post #3 of (permalink) Old 03-10-2005, 05:16 PM
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Re: O/T GM 10 bolt drum to disk swap

I made mine out of 1/4 inch plate (Dana44). I would think it kinda depends on what you wish to use for calipers and such..... [img]images/graemlins/grin.gif[/img]
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post #4 of (permalink) Old 03-10-2005, 08:09 PM
 
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Re: O/T GM 10 bolt drum to disk swap

If it's in a '88-97 1/2 ton chevy look into swapping in a semifloating 14 bolt out of a light duty 3/4 ton. I have one in my '90 and the brakes work great on it, it's also a big improvment in strength. Only real differences between a 1/2 ton and a light duty 3/4 ton are the rear springs, rear axle, badge, and weight rating.
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post #5 of (permalink) Old 03-11-2005, 02:49 AM
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Re: O/T GM 10 bolt drum to disk swap

I did this last year on the wife's suburban (it's a '96). My whole swap was under $150. Here's what I did:

-take off existing brakes including backing plates. I cut the backing plates off so I wouldn't have to pull the axles. I couldn't remember if the axle has C-clips or not.

-I welded some caliper brackets to the housing tube. This is the best part. The right position was up against the flange for the drum backing plate. This made it really a lot stronger. I bought the brackets from AA manufacturing for under $20 shipped. They are already cut and tapped for chevy calipers.

-I found some 6 lug rotors that with basically the right dimensions. It cross references 86575. They are:
vented
11 11/16 diameter
6 on 5.5" pattern
.87" thick

-I had to grind down the axle shaft flange for the rotor 'hat' to fit over. There was still plenty of meat for the lugs. This sounds wacky, but I jacked up one side at a time, put it in gear, instant 350 cubic inch fuel injected lathe. It makes for a good story. (jack up both sides if you have a locker or even LSD)

-I used the Caddy El Dorado style calipers sourced from a U-Pick-it lot for $25. These are the same as I have on my Jeep, and is the same caliper that's going on a ford 9" in my falcon. 3 vehicles, one set of spare pads.

-I got caddy parking brake cables to where they connect to the single cable and spliced to the suburban cable.

I hated working on the drums. The discs are almost too easy. Under normal driving conditions, I don't notice much diffence. When towing I notice a huge difference (much better). I still need to see if one of the newer master cylinders for 4wheel discs will work. It should firm up the pedal a little. It's fine, but not quite as firm a before.

I'll see if I can dig up some pics.

Here's the breakdown:

rotors $40 (pair)
calipers $25
pads $7 (they charged for them since they looked brand new).
brake cable $10
brake hoses $35
caliper brackets $20
Total $137
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