well, the weather finally gave me an opportunity to get out and get stuff done. Last week I got the rear axle housing back from being narrowed. I took a Ford 7.5" axle from under a Ranger and had the long side narrowed to match the short side. Then got an extra short axle and now the axle will fit under the GT. I also scored a limited slip carrier from a Bronco II. I got the complete disc brake set-up from a Mustang with a 7.5 and fitted it to the Ranger axle housing. Here's how it went together....

Limited slip unit from the Bronco II..

These caliper brackets from the Mustang were originally mounted to the outside of the axle flange, when putting on the axle for the MG swap, they need to be cut so that they will bolt onto the back face of the axle housing flange...

like this.

next goes the brake backing plate...

and the rotor.

then bolt on the caliper slide bracket using shims to center the rotor in the opening..the washer is just stuck in there trying to get the spacing right..It will be replaced with a shim in the final assembly.

Then mount the caliper....and the anti-moan bracket that straps to the housing to strengthen the mounting. One other bonus is these calipers have an integral parking brake.

and you've got a 7.5 Ford rear end with limited slip and disc brakes that will fit under the MGB GT! Now to take it all back apart for clean up and painting before final assembly.