Need Help! 3/4 Ton rear disk brake conversion

[WarpathEngineering]

I've been searching here and on other sites about converting my 78 K20's rear drums over to disks and the more I read the more confused I'm getting. I found a bracket kit from Off Road Design but like most of these bracket kits you need to add a drive shaft brake or similar which is something I'd like to avoid. I'm also given to understand that one can use eldorado calipers and maintain their e-brake which sounds good until you realize that these things are expensive in comparison to regular calipers. I'm also understanding that I could swap out my corporate 14 bolt with a newer AAM 10.5 or 11.5 and gain back the e-brake but will have to re-position the spring perches.

So far, am I correct in these assumptions? Have I missed anything? Any suggestions?

[andrewmp6]

Just make sure that rear axle is 2010 and older,2011 they changed the bolt pattern to metric.

[WarpathEngineering]

Anyone ever hear of Right Gear & Axle? They make an adapter plate that will allow you to mount the backing plate, e-brake, hub & brake assembly from an AAM 10.5 or 11.5 on a GM Corp 14 bolt FF.

[dwcsr]

I called them several times to get some but they seemed less than interested in making anymore. I even asked if I could buy the cad file and they didn't have one saying someone else makes them for them.

We decided to make our own for the HO52/72 axle.
I'm not sure ours will work on a early 14 bolt but the housing end looks the same on the HO axles. I suspect it will need a different rotor than we use.

Take a look at this and see if your interested in working with me to make a kit for the swap.

This is for the HO axle with slide on drums
https://www.hollisterroad.com/HO5272Eaton.php

[andrewmp6]

If you can still get them i say go for it.

[dirty dish]

I ordered a bracket from blue torch fab years ago and just installed a line lock valve to rear brake line to use it as an emergency brake can get u pics tomorrow of my set up if needed it's on a 14 bolt rear they make bracket s for any rear

[ranger danger]

Originally Posted by dirty dish

I ordered a bracket from blue torch fab years ago and just installed a line lock valve to rear brake line to use it as an emergency brake can get u pics tomorrow of my set up if needed it's on a 14 bolt rear they make bracket s for any rear

Id like very much to see pics of this!! It sounds like a good alternative to expensive calipers. Id like to see pics of how you activate it in the cab as well. Thanks.