My clutch consists of a new Perfection flywheel, pressure plate & disc for an 87 Mustang. I know it's Chinese but they sell to Zoom & have a good rep so I should be in good shape.
I'm running one of my D5 direct pull bellhousings & during assembly discovered there was almost no clutch travel at the fork. I think the 75 flywheel is about 5/8" thicker than the one I'm running.
I swapped on a bellcrank bellhousing to check the travel since that's what my new flywheel was designed for. It has roughly an inch which only about half of that is needed.
I had a cracked bellcrank bell so I pulled the pivot ball out & swapped it for the 75 version since it's about 5/8" longer.
The longer pivot solved the problem & now I have 1-1/2" of travel so I installed everything with some red Loctite & buttoned it up.
I installed it Tuesday in about 15 minutes.
The 38/38 Weber looks great on there & between the NOS Duraspark, NOS distributor & the new MSD coil I have eliminated every single original piece on this car. I have a new NOS American made AC Delco fuel pump to replace the 40 year old original.
If this sucker still gets 14 mpg after all this I swear to god I'll set fire to it & burn it to the ground.