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IH: Suspension

Rear Shocks & Springs

1957-1985 Shocks / Springs

Complete Shock and Spring Assemblies 1) 2) 3) 4)
YearModelLeftRightStandard/ Option
KH195654500-5654501-56Standard
54500-56A54501-56AUpgrade
XL 8831957-195954500-5654501-56Standard
54500-56A54501-56AUpgrade
54503-5854504-58Option for extra 1“ ground clearance
XLC 883195854503-5854504-58Standard
XLH 8831958-195954500-5654501-56Standard
1958-196654500-56A54501-56AUpgrade
54503-5854504-58Option for extra 1” ground clearance
1967-1971 54501-67 (2) Low road clearance
XLH 10001972 54501-67 (2) Low road clearance
1973-1974 54504-73 (2) High road clearance
1967-1974 54490-78 (2) Optional retro-fit to '78 (Showa)
w/ Conversion Kit (2)- (54529-76)
1975-Early 1977 54504-75 (2) Standard
54490-78 (2) Optional retro-fit to '78 (Showa)
Late 1977-1978 54490-78 (2) (Showa) Standard
Early 1979 5) 54528-77 12.7“ (2) Standard
Late 1979 6) 54565-79 13.5” (2) Standard
Late 1979-1981 7) 54568-79B 12.5“ (2) Standard
1982-1985 8) 54568-82 (2) Standard
XLCH 8831958-1966 54503-58 (2) Standard
1967-1971 54490-78 (2) Optional retro-fit to '78 (Showa)
w/ Conversion Kit (2)- (54529-76)
XLCH 10001972-1974 54490-78 (2) Optional retro-fit to '78 (Showa)
w/ Conversion Kit (2)- (54529-76)
1973-1974 54504-73 (2) High road clearance
1975-Early 1977 54504-75 (2) Standard
54490-78 (2) Optional retro-fit to '78 (Showa)
Late 1977-1978 54490-78 (2) (Showa) Standard
Early 1979 9) 54528-77 12.7” (2) Standard
Late 1979 10) 54565-79 13.5“ (2) Standard
Late 1979 11) 54568-79B 12.5” (2) Standard
XLS 1000Late 1978 12) 54528-77 12.7“ (2) Standard
Early 1979 13) 54565-79 13.5” (2) Standard
Late 1979 14) 54470-79 (2) (Black) Standard
Late 1979-1981 15) 54568-79B 12.5“ (2) Standard
1982-1985 16) 54568-82 (2) Standard
XLX-61 10001983-1985 17) 54568-82 (2) Standard

Shock Conversion Kit 54529-76

  • Basically, a new stud kit (one for each side) was needed to retro-fit '67-'74 shocks to the new '78 Showa shock assembly including;
    • Upper and lower studs, washers and an outer bolt cover.


1)
1952-1959 HD Spare Parts Catalog for all Sportsters and K Models pg 50-53
2)
1953-1963 HD Sportster and K Model Parts catalog pg 58
3)
1954-1978 HD Sportster Parts Catalog (99451-78B pgs 129, 131
4) , 5) , 6) , 9) , 10) , 13) , 14)
1979 HD Sportster Parts Catalog pg 57
7) , 8) , 11) , 12) , 15) , 16) , 17)
1979-1985 HD Sportster Parts Catalog pg 95
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