Thanks for the input. Measured today and the rear axle is 3 inches narrower on the 4x4 than the 46. But, it has wider brake drums so at the lugs it is very close. Also, the frame joint seems to be easy to work with. Only the crossmember for the aft end of the torsion bars will have to be moved back by drilling six new holes. The front frame rails are about an inch different over the front axle. The inner fender well (front) will need to be notched at the front shock mount. I still am having problems working out the master cylinder placement. Thanks again. Please send any more ideas you have.

There is no mechanical problem so difficult that it can not be overcome by brute force and ignorance.