With that set up you should be fine with a one piece driveline. The local driveline shop owner tells me a two piece isn't needed unless the driveline's total length will be over 70 inches,u-joint center to center.
speed


1954 GMC 350
1957 GMC 1/2 ton
1962 Chevy C-30
1952 Chevy 6400 dump bed project truck
'98 Harley FLSTC
'66 Pontiac Catalina
'76 Chevy 1 ton Duallie
'84 Bronco II
'78 Dodge W-200
'81 Toyota 4X4 truck