YES, you're good to go, but, gotta clear you up on a few things first.
A Tremec 3550 IS NOT a TKOII. TKOII was the predicessor (sp.) to the TKO 500 and TKO 600. Different animals here dude. Almost NOTHING will interchange between the 3550 and TKO, including clutch, bellhousing, etc etc. But, you're still in good shape.
A TKO II already has a .68 OD, so we're gonna assume you have a 3550. Here's what you gotta do.......
Any of the regulars see it coming?
........ Here it is.....
Call Walt at Pro-Motion in Ft. Lauderdale FLA. 1-800-771-6843
He'll hook you up!!!!