Way back I had a brand new '79 Mustang with the TRX suspension. It would swap ends on a panic type stop. Ford did everything but change the rear wheel cylinder size - except with new 1" OEMs. They also did a new master cyl, replaced the springs, shocks, loosened the entire suspension - then gave up, saying they had done all that they could and called it a day. They didn't do their own in-house research. The '80s had a 7/8" rear wheel cylinder which I found out accidentally. For about $30 I did them myself, tightened up the suspension to spec and replaced all the rubbers with the original TRX plus called the NHTSA with my complaint. I eventually was reimbursed after a recall was finally issued. Those 1/8" smaller cylinders - did the job