1. I built my truck back in 2006, and lost a few of my receipts... need to know if I am correct in this assumption about replacing my clutch:

A. The MC Clutch kit uses the same cover as the Aisin CKT-040 kit, SECO disc (part # unknown), and because I am using an MC modified BH, I need to use the throw out bearing from a 3.0/R150F. Anyone know the disc#? MC's store shows that they are out of stock, otherwise I wouldn't have asked for the part#. 300whp and me driving like I do has killed my clutch.

Yes, I know that I can find this info out by dropping the trans, but I'm hoping I can get the part #s so I can pre-order the parts.

B. I've read more than a few threads showing R150's doing the D452 5th gear swap. With the different countershaft of the 151, can I do this swap? I'm looking to keep the 151, but get a better overdrive (aka numerically lower).