8 speed drive pulley sizes?

[KeithB 6]

the rear (transmission) is 6 1/4" measured on the outside

the front (motor) is 4" i broke the one on had and gotta find another

what other pulley size options are there?

I heard there is a 3 3/4" motor pulley.

the C-120 hydro i am robbing my 12HP Kohler from had a 5" motor pulley.

[Horse Fanatic 49]

It will work with your 5" pulley, you'll go a little faster in every gear. I used a 5" with an 8 speed but I needed a slightly longer belt.