I INSTALLED THE SCAREBIRD REAR DISC BRAKE CONVERSION THAT USES THE TOYOTA GTS REAR CALIPERS.....THIS IS THE BOMB!
great news! was this a factory R/E? Many of us have other types of R/E in our car. How about a brief write up of the details and some info on Scarebird products. Safety Faster!
https://scarebird.com
He has bracket assemblies for a lot of rears. His claim to fame was well engineered relatively inexpensive kits using readily available calipers and rotors. MG page shows no products available, but I know he sold them for years.
Shown here... <a href="http://www.britishv8.org/mg/waynekube.htm">Wayne Kube's How-It-Was-Done article</a>