921157 Spacer cam drive gear .365"

This .365-inch cam drive gear spacer is used to set the correct end play and alignment in 1999 Twin Cam cam chests. Sold as a pack of 5, it replaces OEM 25675-99 and is essential for a professional engine build. Proper gear alignment is the key to a long-lasting valve train, as it ensures the drive chain or gears operate without unnecessary friction. These spacers allow for the precise adjustments required to meet factory specifications. By using these high-quality replacement shims, you can be confident that your cam drive system is set up for optimal performance and durability, keeping your early Twin Cam on the road for years to come.