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The Peterson Fluid Systems .375-inch spline-drive hub spacer for Big Block Chevrolet applications offers precise offset control for accessory drive components. It pairs with Peterson spline drives and supports Gilmer or HTD belt systems to ensure correct belt tracking on ATI/MSD-style installations. Select the .375" spacer when exact spacing is necessary for big block Chevy setups.
Peterson Fluid Systems Spacer .375 Big Block Chevrolet ATI MSD
