Both will probably use the 7260 U-Joint.
Conversion U-joint is Spicer 5-527X, Meritor CP527X, Precision 347, CR UJ347, TRW 20226, Napa NUJ240-0369, Neapco 2-0527
7260 U-joint is Spicer 5-1306X, Spicer 5-789X (lifetime), Precision RL7260, Neapco 1-6301, Rockwell/Meritor CP1306X
7290 U-joint is SPICER 5-1309X, Neapco 2-1175, Rockwell/Meritor CP1309X
Borg Warner 114-232
Your driveshaft will have to be shortened swapping from a 7-1/4 to and 8-3/4.