Re: American Powertrain X-Factor
I realize you've asked about the crossmember with a TKO, but for what it's worth I have used one to install a T56 Magnum in my '69 and I don't think the T56 is smaller than the TKO. It clears fine, but I did need to do a bit of messaging on the forward portion of the tunnel and readjust my driveline angles at the diff. I also used a quicktime BH which probably provided a bit more space than having used a spacer/adapter plate. Also, the X-Factor has 3 different mounting positions and they provide 3 different cross pieces.
'69 Z/28, Lemans Blue/White Stripes, DZ302, Tremec Magnum, 4.10, Procar Elite Seats,
Custom Upholstery, Dynatech headers, 17" VWW V45's, 235/45, 275/40, C5 Front Brakes