I see that ESC is offering a performance flex disk /guibo.
this Aluminum flex disc is ... CNC machined aluminum , and is rigid, not giving any flex..... Instead, the force is cushioned by the six individual bushings in the flex disc that are made of 80 durometer polyurethane.
I can recall seeing a image somewhere of an Alpina flex disk which seem just a metal plate with bolts - ( must have rubber inserts)- like this item.
77 528i -4 speed manual getting rusty
76 525 - 4 speed, LPG and holley carb- restoring
81 528i - auto - to be relicensed with a 3.5 (83 735i)
80 528i auto - ready to relicense
79 SA ? 528i auto
79 528i auto parts car
86 525e 5 speed manual- dd