Don't let removing your balance shafts shorten your oil pump and engines life. GSC has a race balance shaft that will go in place of the OEM balance shaft and support the oil pumps operation even at extreme rpms.
The GSC Power Division race balance shaft include:
ACL Balance Shaft bearings
Mitsubishi Balance Shaft Delete cap to cap off the balance shaft pulley,
Mitsubishi Balance Shaft Pulley Delete spacer to remove the balance shaft gear from the crank
GSC Race Balance shaft Zero Balanced and CNC Machined.
Replacement Bolt for Balance Shaft Pulley Removal
If your plans include building your 4G63 or 4G64 motor and your ready to make your 4G63 a little lighter internally, make sure you install one of GSC's Race Balance Shaft kits.