70HP 70A 2-Cylinder 2-Cycle (13 Spline) 1981-87
70HP 70A2 2-Cylinder 2-Cycle (13 Spline) 1988-1992
70HP 70B 3-Cylinder 2-Cycle (13 Spline) 1992-1998
70HP 70C Lg Gearcase (15 Spline) 1998-1999
70HP MD70A2 TLDI (15 Spline) 1998-2002
70HP MD70B TLDI (15 Spline) 2002-2010
Solas