1 3/8" x 6 Spline AK220000 fits A220 uni-cross AK421000 fits A421 uni-cross AK622000 fits A622 uni-cross AK824000 fits A824 uni-cross AK036000 fits A036 uni-cross
1 3/8" x 21 Spline AK421121 fits A421 uni-cross AK622121 fits A622/ A600 uni-cross AK824121 fits A824 AK036121 fits A036 uni-cross
1 3/4" x 20 Spline AK622120 fits A622/ A600 uni-cross AK824120 fits A824 uni-cross AK036120 fits A036 uni-cross
1 3/4" x 6 Spline AK824134 fits A824 uni-cross AK036134 fits A036 uni-cross