With 8mm threaded mount holes

73-78 XLH/XLCH

Fits: > 09-21 Touring

Fits: > 14-16 FLHT

bowl gasket

PS, 412 series shock set. 13.5". STD Duty. Chrome 1982-03 Top End Parts Evo With 8mm threaded mount holes412 series shocks: Best value Progressive Suspension shock, great as stock replacement. Nitrogen charged double steel wall body. Multi staged velocity sensitive valving. Five position cam style preload adjustment. Note: Black 412 shocks may be supplied without lower cover. What are Progressive Suspension's 'Heavy Duty' shocks? If you are a lightweight rider with a lightweight passenger, STD Duty is probably your best choice, heavy duty shocks will