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Use these crank pulley spacers with Ford Racing M-6316-C351/A50/D302 crank dampers to achieve proper belt alignment on past model 302 and 351 Windsor engines.
INSTALLATION NOTES Early 3-bolt crank pulleys generally bolt directly to the damper (damper is drilled for 3- and 4-bolt patterns). Sheave alignment should be checked and any misalignment. corrected with the proper thickness spacer.