That's for the Tremec 6060, isn't it? Will it fit in the 3650? I didn't think they interchanged.Save yourself the effort and buy this clutch set-up:
https://lmr.com/item/LRS-7546GT500-K/GT500-Clutch-Kit-07-09-Mustang
It's perfect and OEM; recently had one installed on my GT500 and it's simply 'right.'