Can someone help? I can't find any articles, tech info, etc about doing a disc brake conversion for a Ford 9 inch. What's the deal? Has anyone done this conversion not using one of those expensive conversion kits?? Using good ole' Junk Yard parts? Love em. :flipoff2:

I have swapped to disc om my 74 Bronco , it went well w/ a TSM
conversion kit . It is a little expensive but the results were worth
the $$$ ! The kit uses half ton chevy 4x4 rotors and a manufactured caliper bracket , also uses common chevy calipers and hose . You could probably source a dirt track or racecar shop
for some weld on brackets and then use camaro calipers and re -
drilled rotors to fit your axle flange. You also have to swap to a different master cylinder , I 'm using one for a 79' f- 350 . I think
a mc for a newer model camaro would work . Sorry to ramble but
I hope this will help you out ! lorent:flipoff2: :smokin:

BC Bronco's also makes a kit if you want a kit. Chuck lists all the parts and offers the brackets. If you want, you could probably fab the brackets and such if you really wanted to. The main parts are:
ROTORS: 80-86 Jeep CJ-7 front, Bendix #141257
CALIPERS: 79-85 Cadillac Seville, Bendix #L55311 & #L55312
brackets
spacers
hardware to bolt it up, brake lines etc - check out
BC Broncos (http://www.bcbroncos.com/) for more info on that conversion

If ya want easy, factory, cheap, junk yard rear discs, you want everything from a late 70's lincoln mark 5. This stuff'll bolt onto any 9" with little to no effort and it has an ebrake.

I've done the mid 70ss Lincoln disks on a couple of Early Bronco 9ss with bone yard parts for under $200.00.
When you’re looking at the bone yard a quick way to do a walk by I.D. Is the brake booster is usually hydro-boost, the vehicle I find most common is a Lincoln Mark V? from the mid 70ss, cut the rear break hoses and remove the calipers and then the mounting bracket and then the axle from the housing, there’s another bracket under the pressed on bearing so you'll have to take the axle with you and remove it at home or bring 2 pcs. of 1"X1/2" rect.tube stock or something like that about 1' long, take a drill and drill a hole about the width of the bearing retainer ring in the ring if it doesn’t pop hit it with a chisel a few times, take two rims or if your at home use blocks of wood and place the two pcs. of rect. stock under the bracket and across the rims/blocks of wood to rise it up enough to be able to take a 5 pnd. sledge and pound on the end of the axle until the bearing slides up enough to fall off, now you've got all the parts you need and maybe two axles you'll never need.
I rebuild the calipers myself or you can use the ones you got for cores, if you rebuild there are two different rebuild kits, one for just the e/parking brake and a complete one for the whole caliper this is the one you want it's usually the more expensive one, you will need one rebuild kit for each caliper, I always get 3 just incase I cut an O-ring by accident, sometimes you might have a bad piston in one of the calipers by that I mean the parking brake internals in the piston has gone bad, you can still get these new I think, but what I would do if they are way expensive is go back to the bone yard and get an extra set of calipers and see if the piston is good on those.
One last thing these will only work on the big bearing 9" housings, you should also use the stronger tapered roller bearings but you can use them with a sealed bearing also, make sure you have clearance between the caliper bracket that retains the bearing and the back of your axle flange, sometime the radius where the flange blends into the shaft rubs on the bearing retainer.
Anyway I hope this was some help to you, happy hunting.

I think tonto said it all. Only thing I have to add is that the rotors are 5 on 5 bolt circle. The rotor can be redrilled and the rotor "hat" machined out a bit so a 5 on 5.5 axle flange will fit.

Here's an article I did on rear disc brakes for Alloffroad.

http://www.alloffroad.com/issue/2001/june/contents/reardisc.htm

Hope that helps!

Thanks everyone. All very helpful. I ended going with the Mark V suggestion. I managed to find two.
First one, had the rear discs..missing (axle shafts and all). Big bummer for awhile. After searching in the boneyard for ahwile, I ran into another one. I believe it was a 78 Mark V Bill Blass edition. I yanked out the axle shafts with mounting plate and caliper (one was missing). I also went ahead and pulled out the e-brake cable for use on my Jeep and the hydrobooster. It all should work out great. Heard great things about the hydroboost setup. THANKS ALL.
Feel free to email me for further updates, etc.

I got me the BC Broncos rear disc. It went in easy the only hard part was locating some donor calipers.