3/4" ID x 1" OD Sleeve 3/4" to 1" Sleeve or bushing 34to1 3421

I.D: Inside diameter 3/4"
O.D: Outside diameter 1"

- The length of the keystock is about 2"

- The length of the sleeve is about 2 7/8" long. If this is too long for your engine crankshaft, you can cut it down.

- You may have a very hard time or may not find this sleeve and the key stock at a local hardware stores

- This sleeve and stepped key stock were custom made by a machine shop for engine has 3/4" diameter crankshaft with 3/16" keyway to work with pulley that has 1" diameter bore with 1/4" keyway.

- This sleeve and key stock were designed to fit on our 3/4" diameter crankshaft with 3/16" keyway for customer who has 1" diameter with 1/4" keyway crankshaft engine and wants to buy our 3/4" diameter crankshaft engine.

- Stepped key from 3/16" to 1/4"

NOTICE: This will not work if your keystock was built into your pulley. You must have a pulley with 1/4" keyway.