Drive shaft wanted !

I measured the distance from the center of the U-joint to the yoke seal face on a 727 and it measures 2 1/4 inches. If you slide the yoke out 1 inch to allow for movement, the U-joint center would then be 3 1/4 inches. If you measure the face of the rear pinion yoke where the U-joint straps attach to the trans seal face (end of output shaft housing) then take 3 1/4 inches off that measurement, you should have your dimension.

Ken