IH: Suspension - Sportsterpedia

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====== IH: Suspension ======

====== Swingarm (rear fork) Info ======
===== Swingarm =====
==== Removing the Swingarm ====
  * If you can do it without removing the staked nut on the left side is best. It serves to center the swingarm in the frame and you can bung up the threads  on that nut really easily. ((GA_Ironhead http://xlforum.net/vbportal/forums/showthread.php?t=185355))

==== Assembling the Swingarm ====
  * For the swing arm its pretty easy when you know how it works. The pivot bolt when tightened presses the inner bearing and race,bearing spacer, and dust shield onto both sides of the frame and the actual adjustment is done by tightening bearing locknut on the right side till you have the desired preload once the preload is set then comes the lock-ring so the right bearing locknut cant turn. ((OutlawTexan67 http://xlforum.net/vbportal/forums/showthread.php?t=185355&page=2))
  * When you install the locknut do not stake it as advised in the FSM. A little [not a lot] of blue locktite is all that it needs, and whoever needs to remove it one day will be thankful. ((IronMick http://xlforum.net/vbportal/forums/showthread.php?t=1835679&highlight=swingarm))

=== Guide to Swingarm Bearing Replacement  ===
Article and Pics by ericfreeman ((http://xlforum.net/vbportal/forums/showthread.php?t=709634))

|Here are all the parts laid out as they will fit into the swingarm|The bearing outer races are already installed in the swingarm|Inspect the swingarm inner surfaces to ensure they are clean. You can see the bearing outer race already installed in the other side.|
|{{:techtalk:ih:susp:l1000229_by_ericfreeman.jpg?direct&300|}}|{{:techtalk:ih:susp:l1000228_by_ericfreeman.jpg?direct&300|}}|{{:techtalk:ih:susp:l1000230_by_ericfreeman.jpg?direct&300|}}|

|Use some 800 wet/dry sandpaper to smooth the surface|Press the outer races into place using an appropriate tool.|Grease the tapered roller bearing. I used a very sticky marine grease that won't wash out. It's not for bearings that rotate at high speed like wheel bearings but will be fine for the swingarm that just oscillates through a small arc.|
|{{:techtalk:ih:susp:l1000231_by_ericfreeman.jpg?direct&300|}}|{{:techtalk:ih:susp:l1000232_by_ericfreeman.jpg?direct&300|}}|{{:techtalk:ih:susp:l1000233_by_ericfreeman.jpg?direct&300|}}|



==== Installing the Swingarm ====




==== Swingarm Parts List ====

|**Year Model**|**Swingarm Part** #|||
|**1952-1956 All K Models** \\ **1957 Sportster**|47504-52 \\ replaced by 47504-52A ((Spare Parts Catalog for all Sportster and K Models pg 38 by OSKRG/ www.harleyKmodel.com)) ((HD 1952-1959 Spare Parts Catalog for Sportsters and K Models pg 45)) \\ replaced by 47504-52B ((1963 HD Parts Catalog for Sportsters and KH Models 1953-1963 pg 50))|All new versions are retro-fit||
|**1967-1969 XLCH**|47504-56B ((1952-1978 HD Parts Catalog pg 111))|||
|**1967-1974 XLH** \\ **1970-1974 XLCH**|47504-67A ((1952-1978 HD Parts Catalog pg 111))|||
|**1975-1976 XLH, XLCH**|47504-75 ((1952-1978 HD Parts Catalog pg 111))|||
|**1977-1978 XL, XLCH**|47504-76 ((1952-1978 HD Parts Catalog pg 111))|||
|**1979 XL/XLCH/XLS**|47532-79 (**with bearings**) ((1979 HD Sportster Parts Catalog pg 53))|||
|**1979 XL/XLCH/XLS**|47549-79 (**without bearings**) ((1979 HD Sportster Parts Catalog pg 53))|||
|**1979-1981 XL/XLCH/XLS**|47532-79A (**with bearings**) ((1979-1985 HD Sportster Parts Catalog pg 87))|||
|**1979-1981 XLCH** \\ **1979-1981 XL/XLS**|47473-80 (**without bearings**) ((1979-1985 HD Sportster Parts Catalog pg 87))|||
|**1982 XL/XLS**|47532-81 (**with bearings**) ((1979-1985 HD Sportster Parts Catalog pg 89)) Square Tube ((cdn_edge http://xlforum.net/vbportal/forums/showthread.php?t=709634&page=5))|||
|**1983-1985 XL/XLS/XLX**|47532-83 (**with bearings**) ((1979-1985 HD Sportster Parts Catalog pg 89)) Square Tube ((cdn_edge http://xlforum.net/vbportal/forums/showthread.php?t=709634&page=5)) |||

==== Swingarm Pivot Bolts, Bearings and Related Parts List ====

|**Inner Bearing Shield**|Part #|**Inner Bearing Spacers**|Part #|**Outer Bearing Spacer (R)**|Part#|
|52-56 K Models \\ 57-81 XL/XLH/XLCH/XLS|(2) 47519-52|52-56 K Models \\ 57-81 XL/XLH/XLCH/XLS|(2) 47518-52|52-56 K Models \\ 57-E74 XL/XLH/XLCH|47517-52|
^   ^   ^   ^   |L74-81 XLH/XLCH/XLS|47517-74|



|**Swingarm Bearings**|Part #|**Swingarm Bearings**|Part #|
|52-56 K Models \\ 57-E74 XL/XLH/XLCH|(2) 47521-52 \\ Timken: Race 17520, Bearing 17580 ((GA_Ironhead http://xlforum.net/vbportal/forums/showthread.php?t=709634&page=5))|82-85 XL/XLS/XLX|(left) (1) 47083-81|
|54-E74 KH/XL/XLH/XLCH|Bearing Kit 47550-74| 82-85 XL/XLS/XLX|(Right) (2) 47082-81 \\ Timken: Race LM11710, Bearing LM11749 ((GA_Ironhead http://xlforum.net/vbportal/forums/showthread.php?t=709634&page=5))|
|L74-81 XLH/XLCH/XLS|(2) 47521-74 \\ Timken: Race 11520, Bearing 11590 ((GA_Ironhead http://xlforum.net/vbportal/forums/showthread.php?t=709634&page=5))|


|**Bearing Locknut Lock-plate (R)**|Part #|
|52-56 K Models \\ 57-81 XL/XLH/XLCH/XLS|47525-52|
|**(#10)Bearing Retention: \\ Lock-Plate Screw / Washer / Lockwasher (R)**|Part #|
|52-56 K Models \\ 57 Sportster|1187|
|52-56 K Models \\ 57-63 XL/XLH/XLCH|(#10 x 3/8" self tapping) 2657|
|52-56 K Models \\ 57-59 Sportsters|(#10x13/32") External tooth shake-proof lockwasher 7220|
|53-63 K Models \\ 57-63 XL/XLH/XLCH|5/8" Lockwasher 7072|
|L72-81 XLH/XLCH/XLS|(10-24 x 1/2") Pozidriv fil head (R) 1198|
|L72-81 XLH/XLCH/XLS|(#10) Lockwasher (R) 7069|
|54-81 KH/XL/XLH/XLCH/XLS|(5/8") Bearing Lockwasher 7022|

|**Swingarm Pivot Bolt / Nut**|Part #| 
|54-81 KH/XL/XLH/XLCH/XLS|47511-52|
|82-85 XL/XLS/XLX|41568-81A|
|**Pivot Bolt Nut**|**Part #**|
|52-56 K Models \\ 57-E74 XL/XLH/XLCH| 47512-52|
|L74-81 XLH/XLCH/XLS|47512-74|

|**Bearing Locknut**|Part #^   |
|52-56 K Models & \\ 57-E74 XL/XLH/XLCH| 47514-52 (Left)|{{:techtalk:ih:susp:1972_swingarm_left_side_locknut_by_bsaman.jpg?direct&200|}} ((photo by bsaman http://xlforum.net/vbportal/forums/showthread.php?t=1835679&highlight=swingarm))|
|52-56 K Models & \\ 57-E74 Sportster|47515-52 (Right)|{{:techtalk:ih:susp:1972_swingarm_right_side_locknut_by_bsaman.jpg?direct&200|}} ((photo by bsaman http://xlforum.net/vbportal/forums/showthread.php?t=1835679&highlight=swingarm))|
|L74-81 XLH/XLCH/XLS|47514-74 (Left)|
|L74-81 XLH/XLCH/XLS|47515-74 (Right)|

|**Axle Adjuster**|Part #|
|54-78 KH/XL/XLH/XLCH|Axle Adjuster (2) 39985-52|
|79-85 XL/XLCH/XLS/XLX|Axle Adjuster (2) 41570-77|

|**Axle Adjuster Nuts / Washers**|Part #|
|54-78 KH/XL/XLH/XLCH|Inner Axle Adjuster Nut (2) 7753 (5/16"-24 NF x 17/64" x 1/2" hex) |
|54-78 KH/XL/XLH/XLCH|Outer Axle Adjuster Nut (2) 7744 (5/16"-24 NF x 3/16" x 1/2" hex)|
|79-85 XL/XLCH/XLS|Washer, (2) 6324W (5/16" x 11/16" x 3/32")|
|79-85 XL/XLCH/XLS|Locknut,(2) 7725 (5/16"x24 x 11/32" x 1/2" hex)|

|**Fork End Covers**|Part #|
|79 XL/XLCH/XLS|(2) 47554-78|
|79-85 XL/XLCH/XLS/XLX|(2) 47554-73|

|**Bearing Dust Shield**|Part #|
|82-85 XL/XLS/XLX|(2) - (right) 41579-81|

|**Pivot Bolt Spacer**|Part #|
|82-85 XL/XLS/XLX|(left) 5716|

|**Plastic Bearing Plug**|Part #|
|83-85 XLX|(Left) 10040|

|**Passenger Footpeg Bracket**|Part #|
|83-85 XL/XLS| (2) 50615-83|
|83-85 XL/XLS|3/8" Lockwasher for Footpeg Bracket (2) 7045|
|83-85 XL/XLS|3/8"x16 2" Knurled 9/16" Socket Head Screw (2) 855 \\ for Passenger Footpeg Bracket|


===== Swingarm Pics =====
Click on a pic to enlarge:

|{{:techtalk:ih:susp:1980_swingarm_assy_by_outlawtexan67.jpg?direct&300|}}|
|  1980 Swingarm bolt assembly ((photo by OutlawTexan67 http://xlforum.net/vbportal/forums/showthread.php?t=185355))  |
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Trace: • IH: General Technical Information • IH: Body Parts - Sub-01G • REF: Oiling & Lubrication • EVO: Oiling & Lubrication - Sub-04K • IH: Electrical System - Sub-02M • IH: Carburetor, Intake Manifold & Exhaust - Sub-01R • IH: Carburetor, Intake Manifold & Exhaust - Sub-01B • REF: Oiling & Lubrication - Sub-01A • IH: Suspension • EVO: Oiling & Lubrication