... #,2 #,3#, 4 #,5#, 6 # ,4# with slip clutches and 6# with slip clutches:1) 1 shaft: a) length: 27" - 50" b) Six ... ends: 1-3/8" c) Up to 30HP tractors2)4 shaft: a) Length: 29" - 53" b) Six spline ends: 1-3 ... " b) Six spline ends c) Up to 100HP tractors4)6 shaft with slip clutch: a) Length: 36" - 56" b) Six spline, Lemon ... c) Up to 160HP tractors at 1,000rpm Tractor Drive Shaft