4 wheel Disc Brakes

You all bring up very very good points. 

When I got the rearend, yes, it was all in peices and missmatched at that. So I had to do alit if digging and research to find any parts that I was going to still need to make it happen. 

With that being said. I too am not fond of the spacers. I am merely using them as place holders until I can either find a solid spacer or now that I have the measurements get some made. Eventually it will be changed. 

As far as the caliper brackets go I tried a few different combos before I bolted everything together. I even took a look back at the pictures that Californiajohnny shared. 

I tried to match my caliper position to the picture. The hose that feeds the caliper with fluid would hit the shock mount bracket not allowing the caliper to sit correctly, thus the spacers. Eventually I plan on Getting custom retainer/caliper bracket made, but that's a long way off. 

Right I want to jus get it in the car. So that's what I'll be doing today getting the old rearend removed and then new one put in.

pictures to come. 

And at 8:50pm we are in. Tomorrow tighten it up and figure out the e-brake n some other stuff. 

From pictures, his calipers are hitting the shock and upper control arm brackets and needed to be shimmed. They appear to be out of place, not concentric with the rotor.

Johnny's pictures show the caliper retainer (and bolt for it) the the bottom of the caliper.

Dmark28's are on top. That tells me the caliper mount bracket is upside down. Caliper mount bracket bolts to the bearing/axle retainer. I don't know if they are symmetrical, or different from side to side.

Either way, this mislocates the caliper.

In his original pic, the calipers are forward of the axle instead of behind it. This appears to be corrected, but the shims are a new symptom.

Something's not right though.

Any chance the caliper brackets are on the wrong sides? driver/passenger? That would turn them upside down and affect mounting/clearance.

Your caliper retainers are up on top. Johnny's are at the bottom.

Those look great. For braking power, the OEM 70's discs may be the best choices, but I haven't checked the caliper piston size(affects power and balance). Ford did make good thick rotors back then, they made them thinner as time went on into the 90's.

I will prefer the later model brakes for ease of maintenance and finding parts. But any upgrade is a good thing IMO.

-DeMarco

 I would say using the Mustang set-up as a whole would probably work well, now if trying to use a Mustang HB unit(hydraulic portion) and not use the vertically mounted Mustang MC then that would probably give you issues(trying to find another MC that will physically mount and work). I used the Astro van HB unit(hydraulic portion that mounts to firewall), but my MC is sourced from an '80 Corvette. I know sounds difficult/involved, but the Astro-van HB unit uses a shallow bore MC, which the Corvette MC has. The 'Vette MC also is a 4 wheel disc 1 1/8" bore MC and it has fender exit ports(I wanted this to get brake lines/hoses away from header heat). Yes, the '98-'02 rear rotors are solid(I did buy drilled and slotted for my application) and I also had to fab up E-brake cable routing and connection to Ranchero E-brake cable. As far as the Astro-van HB unit goes, it is very easily adaptable to just about any firewall, just need to pay attention to the HB unit's input rod in relation to the vehicle's brake pedal attachment point( I had to cut and weld the rod to work with my application). I initially cut the rod to be able to totally disassemble and re-seal the HB unit, once re-sealed I welded and gusseted the rod to add strength. I did many two feet on the brake pedal stops to ensure that there would be no issues, been installed since '10 or '11 and it's been all good.