Flywheel→Flywheel Ring Gear by Application→GM V6

Part # & Price	Description
BPIRG-153-N $49.95	Ring Gear GM Marine 12.75 Inch Flywheel 4 Cyl V6 V8 Ring Gear fits 12" - 12-3/4" Flywheels on GM applications 153 teeth. If you are unsure about what diameter flywheel you have look at your starter. IF you starter is held on with 1 long and 1 short bolt, you have a 12 inch flywheel. Nothing really goes wrong with a marine flywheel except the ring gear wears out. Most people don't even know this is replaceable. Installation Tips: 1. Tap your old ring gear off with a blunt chisel and a hammer. 2. Place new ring gear in the oven on 500 degrees for about 30 minutes. Place the flywheel in a cool or cold environment. 3. Remove ring gear from oven using pliers or an oven mit and place on flywheel and just tap in place. 4. When the two metals become the same temperature, You're done!
BPIRG-168-S $49.95	Ring Gear Flywheel GM Marine 14 Inch Flywheel 168 Tooth 4 Cylinder V6 V8 Flywheel Ring Gear fits All 14 Inch Flywheels on GM Chevy applications Has 168 teeth and fits top and bottom mount starter applications. Nothing really goes wrong with a marine flywheel except the ring gear wears out. Most people don't even know this is replaceable. IF you are unsure of your ring gear diameter you can look at your bottom mount starter. If your starter is held on with 2 long bolts then your flywheel is 14 Inch. All top mount starter applications use the 14 Inch flywheel. Installation Tips: 1. Tap your old ring gear off with a blunt chisel and a hammer. 2. Place new ring gear in the oven on 500 degrees for about 30 minutes. Place the flywheel in a cool or cold environment. 3. Remove ring gear from oven using pliers or an oven mit and place on flywheel and just tap in place. 4. When the two metals become the same temperature, You're done!