Mine is a M/T timingcover drive as described above with the crank support built in and the only company I'm aware of making one for the SBF. The benefit here is that these do not wear out or need constant inspection. I also have a custom Boss 302 tunnel ram I considered using it with if he has a use. Text me at 33o-84for-six37o
or email Adamscoachandspeed@Gmail.com
I'll use it eventually but I'm trying get everything bought for my Fairlane so if he's serious about using it I'd sell or trade it for something I need currently.