[esean]

After reading the 4-pg "speed-up" pulley thread I went and looked at my 44A deck. It has one already installed, apparently by the factory. The top pulley is 4-1/8", a little smaller than the lower pulley. This deck came with a later-model 1200 I inherited. It had NEVER been used and was leaning against the wall in Grandpa's garage, with the mule drive belt hanging above it. He just used the tractor to pull a cart around.