If you are still stock, the trans did not have a support, per se. The trannys were cantilevered off the Bell Housing. The rear of the engine/bell housing was supported on a "rear engine" support member. (These bell housings are called "truck bell housings"). This cross-over member may, or may not, still be bolted on. You will see the big riveted mounting brackets still there probably. At any rate, if you/PO have not put in a tranny cross member in the area of the old MC or it's mounting box, you will not have any trouble with the kit. This whole thing is predicated upon what you have down under there. Stock or modified? what engine and tranny mounting? If you study the CPP tech info area where they have pics of the install, you will see where the new MC fits. Several Magazines have install pics online for these kits also. I do not use spacers on wheels.

Right is right, even if everyone is against it, and wrong is wrong, even if everyone is for it. - William Penn