[Cobra 29]

I am using FMS-M-7550-T302 10.5" disk. It is a Ford Motorsport part made by Centerforce. It is 26 spline X 1 1/8 diameter shaft for a Tremec TKO transmission. It has different materials on each side of the disk; one side is organic and the flywheel side contains "wedges" of material impregnated with copper? metal. I used this disk because my car already had a good Centerforce PP when I swapped my transmission. I had this same disk in a 10 spline for my old 3550 and needed to convert to a 26 spline disk for the new TKO600.

I second disk choice was a RAM 309M. A friend of mine, with a Cobra, uses this disk with a FMS PP.

Both disks work very well (smooth engagement) for the street with spirited driving on occasion.