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techtalk:ih:engmech09 [2021/06/28 23:32] hippysmack [Sub Documents] |
techtalk:ih:engmech09 [2023/12/27 20:43] hippysmack |
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====== General Information ====== | ====== General Information ====== | ||
===== Sub Documents ===== | ===== Sub Documents ===== | ||
- | * [[techtalk:ih:engmech09a|Removing / Installing Motor Mounts]] | + | * [[techtalk:ih:engmech09a|Sequence of Installing IH Motor Mounts]] (General Assembly Procedure) |
* [[techtalk:ih:engmech09b|Shimming Motor Mounts]] | * [[techtalk:ih:engmech09b|Shimming Motor Mounts]] | ||
+ | * [[techtalk:ih:engmech09c|Ironhead Motor Mount Torque Specs]] | ||
* [[techtalk:ih:engmech09p|Discrepancies with Motor Mount Illustrations in the HD Manuals (57-76)]] | * [[techtalk:ih:engmech09p|Discrepancies with Motor Mount Illustrations in the HD Manuals (57-76)]] | ||
+ | |||
===== Bolt Grades ===== | ===== Bolt Grades ===== | ||
There are conflicting views on what grade bolts to use. \\ | There are conflicting views on what grade bolts to use. \\ | ||
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And that upon a collision, a grade 8 bolt would break or shear whereas a grade 5 bolt would bend or deform (but still remain "intact"). \\ | And that upon a collision, a grade 8 bolt would break or shear whereas a grade 5 bolt would bend or deform (but still remain "intact"). \\ | ||
(That reasoning is debatable however. Both have been used successfully) \\ | (That reasoning is debatable however. Both have been used successfully) \\ | ||
- | Others say a grade 8 bolt is always harder, and stronger in tensile and shear than a grade 5. ((DDDDylan of the XLFORUM http://xlforum.net/forums/showthread.php?t=829078&page=2)) \\ | + | Others say a grade 8 bolt is always harder, and stronger in tensile and shear than a grade 5. ((DDDDylan of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/97896-motor-mount-bolts-need-specs/page2?t=829078&page=2)) \\ |
(30,000 psi higher in tensile strength and 40,000-50,000 psi higher in shear strength). \\ | (30,000 psi higher in tensile strength and 40,000-50,000 psi higher in shear strength). \\ | ||
If loaded to failure, grade 5 will have more % elongation than a grade 8 before it finally breaks, but will still break at a lower stress than a grade 8. \\ | If loaded to failure, grade 5 will have more % elongation than a grade 8 before it finally breaks, but will still break at a lower stress than a grade 8. \\ | ||
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Lower grades are used to save cost over higher grades when cost is a factor. Lower grades offer no mechanical advantage. \\ | Lower grades are used to save cost over higher grades when cost is a factor. Lower grades offer no mechanical advantage. \\ | ||
The MoCo's first use of grade 8 motor mount bolts was in 1986. \\ | The MoCo's first use of grade 8 motor mount bolts was in 1986. \\ | ||
- | |||
- | ===== Torque Specs ===== | ||
- | There are no torque specs for the motor mount bolts in the 57-78 FSMs. \\ | ||
- | And there is only value in the 79-85 FSM (rear motor mounting bolt-nut: 16 to 24 ft lbs). \\ | ||
- | For the rest, there is a "General Fastener Tightening Specifications" chart in the 70-78 and 79-85 FSMs. ((1970-1978 HD Sportster XL/XLH/XLGH/XLT-1000 FSM pg 1-13)) \\ | ||
- | It lists general torque values for bolt types but not specific mounting bolts. \\ | ||
- | It also says to torque to these values given in the table unless specified otherwise. \\ | ||
- | |||
- | ^{{techtalk:miscres:instruction_sheet_header_4.png?nolink&820|}}|||||||| | ||
- | |Bolt size|SAE 2 \\ 74,000 psi \\ Low carbon|SAE 5 \\ 120,000 psi \\ Medium carbon \\ heat treat|SAE 7 \\ 133,000 psi \\ Medium carbon \\ alloy|SAE 8 \\ 150,000 psi \\ Medium carbon \\ alloy|Socket head \\ cap screw \\ 160,000 psi \\ High carbon \\ quenched tempered|Socket head \\ set screw \\ 212,000 psi \\ High carbon \\ quenched tempered|Studs| | ||
- | |#6|-|-|-|-|-|9 in/lb|Use \\ SAE \\ 2,5 and 8 \\ values \\ when \\ grade \\ is known \\ with nut \\ and \\ sufficient \\ strength| | ||
- | |#8|-|14 in/lb|-|-|-|16 in/lb|:::| | ||
- | |#10|-|22 in/lb|-|-|-|30 in/lb|:::| | ||
- | |1/4"|6 ft/lb|10 ft/lb|13 ft/lb|14 ft/lb|16 ft/lb|70 in/lb|:::| | ||
- | |5/16"|12 ft/lb|19 ft/lb|25 ft/lb|29 ft/lb|33 ft/lb|140 in/lb|:::| | ||
- | |3/8"|20 ft/lb|33 ft/lb|44 ft/lb|47 ft/lb|54 ft/lb|18 ft/lb|:::| | ||
- | |7/16"|32 ft/lb|54 ft/lb|71 ft/lb|78 ft/lb|84 ft/lb|29 ft/lb|:::| | ||
- | |1/2"|47 ft/lb|78 ft/lb|110 ft/lb|119 ft/lb|125 ft/lb|43 ft/lb|:::| | ||
- | |9/16"|69 ft/lb|114 ft/lb|154 ft/lb|169 ft/lb|180 ft/lb|63 ft/lb|:::| | ||
- | |5/8"|96 ft/lb|154 ft/lb|215 ft/lb|230 ft/lb|250 ft/lb|100 ft/lb|:::| | ||
- | |3/4"|155 ft/lb|257 ft/lb|360 ft/lb|380 ft/lb|400 ft/lb|146 ft/lb|:::| | ||
- | |7/8"|206 ft/lb|382 ft/lb|570 ft/lb|600 ft/lb|640 ft/lb|-|:::| | ||
- | |1"|310 ft/lb|587 ft/lb|840 ft/lb|700 ft/lb|970 ft/lb|-|:::| | ||
- | |||
- | {{:techtalk:ref:svcproc:bolt_head_grade_markings.jpg?direct&300|}} ((drawing by Hippysmack)) \\ | ||
===== Parts Lists ===== | ===== Parts Lists ===== | ||
- | ^{{techtalk:miscres:instruction_sheet_header_4.png?nolink&820|}}|||| | + | ^{{techtalk:miscres:instruction_sheet_header_4.png?nolink&820|}}||||| |
- | | Rear Motor Mounts |||| | + | | Rear Motor Mounts ||||| |
- | |Part#|Year model|Hole for kicker|Notes| | + | |Part#|Year model|Hole for kicker|Rear Mount \\ Bushing|Notes| |
- | |16201-52|52-60 K Models/XL/XLH/XLCH| ✔ |4 hole| | + | |16201-52|52-60 K Models/XL/XLH/XLCH| ✔ | ✘ |4 hole mount.| |
- | |16201-58|61-E62 XLH/XLCH \\ 67-69 XLCH| ✔ |4 hole| | + | |16201-58|61-E62 XLH/XLCH| ✔ | ✘ |4 hole mount. \\ Replaced by 16201-52 (-65)| |
- | |16201-58A|L62-66 XLH/XLCH \\ 67-69 XLCH| ✔ |4 hole| | + | |16201-58A|L62-66 XLH/XLCH \\ 67-69 XLCH| ✔ |16202-62|4 hole mount.| |
- | |16203-67|67-81 XL/XLH/XLS \\ 70-81 XLCH| ✔ |2 hole| | + | |16203-67|67-81 XL/XLH/XLS \\ 70-81 XLCH| ✔ |16202-62|2 hole mount.| |
- | |16203-82|82-83 All| ✘ |2 hole. Replaced by 16203-82A. Appearance- cast| | + | |16203-82|82-83 All| ✘ |16240-82|2 hole mount. Replaced by 16203-82A. \\ Appearance- cast| |
- | |16203-82A|84-90 All| ✘ |2 hole. Replacement for 16203-82. Appearance- billet| | + | |16203-82A|84-90 All| ✘ |16240-82|2 hole mount. Replacement for 16203-82. \\ Appearance- billet| |
^{{techtalk:miscres:instruction_sheet_header_4.png?nolink&820|}}||| | ^{{techtalk:miscres:instruction_sheet_header_4.png?nolink&820|}}||| | ||
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* [[techtalk:ih:engmech09e|Rear Motor Mount Bolt Sizes and Lengths from Parts Catalogs]] | * [[techtalk:ih:engmech09e|Rear Motor Mount Bolt Sizes and Lengths from Parts Catalogs]] | ||
* [[techtalk:ih:engmech09f|Broken / Cracked Rear Mounts]] | * [[techtalk:ih:engmech09f|Broken / Cracked Rear Mounts]] | ||
- | * [[techtalk:ih:engmech09g|Removing the Rear Motor Mount and Studs]] | + | * [[techtalk:ih:engmech09g|Removing the Rear Motor Mount and Studs from the Engine]] |
* [[techtalk:ih:engmech09h|Rear Mount Assembly]] | * [[techtalk:ih:engmech09h|Rear Mount Assembly]] | ||
* [[techtalk:ref:engmech09|Aftermarket Rear Mount Option (Pingel)]] | * [[techtalk:ref:engmech09|Aftermarket Rear Mount Option (Pingel)]] | ||
+ | |||
===== Using studs vs bolts on rear mounts ===== | ===== Using studs vs bolts on rear mounts ===== | ||
The stud (or bolt) is threaded into an aluminum casting (the case) which is not noted for having great strength. ((piniongear at HD Forums https://www.hdforums.com/forum/ironhead/633728-ironhead-rear-motor-mount-stud.html)) \\ | The stud (or bolt) is threaded into an aluminum casting (the case) which is not noted for having great strength. ((piniongear at HD Forums https://www.hdforums.com/forum/ironhead/633728-ironhead-rear-motor-mount-stud.html)) \\ | ||
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===== 1952-1981 rear mounts ===== | ===== 1952-1981 rear mounts ===== | ||
- | The old rear mounts and the crankcase have 4 holes. ((piniongear of the XLFORUM http://xlforum.net/forums/showthread.php?t=1297584&page=19)) \\ | + | The old rear mounts and the crankcase have 4 holes. ((piniongear of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/127032-getting-this-78-back-to-the-way-it-should-be/page19?t=1297584&page=19)) \\ |
When Harley changed to 2 hole mounts, all they did was knock the front 2 holes off the old mount and later eliminated the 2 front holes in the case. \\ | When Harley changed to 2 hole mounts, all they did was knock the front 2 holes off the old mount and later eliminated the 2 front holes in the case. \\ | ||
But the hole spacing stayed the same. \\ | But the hole spacing stayed the same. \\ | ||
So if you want to use a 4 hole mount on a 2 hole case; \\ | So if you want to use a 4 hole mount on a 2 hole case; \\ | ||
All you have to do, if you should be so lucky to find a steel mount, is saw off the front 2 hole area of the mount. \\ | All you have to do, if you should be so lucky to find a steel mount, is saw off the front 2 hole area of the mount. \\ | ||
- | If you want to use a 2 hole mount on a 4 hole case, you'll have to stick some short bolts in to plug the 2 unused case holes but it should fit just fine. ((8ball of the XLFORUM http://xlforum.net/forums/showthread.php?t=2031256)) \\ | + | If you want to use a 2 hole mount on a 4 hole case, you'll have to stick some short bolts in to plug the 2 unused case holes but it should fit just fine. ((8ball of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/190594-2-bolt-vs-4-bolt-rear-motor-mount?t=2031256)) \\ |
- | Here are the 4 kick only (4 bolt) rear motor mounts. ((Dr Dick of the XLFORUM http://xlforum.net/forums/showthread.php?p=3204448#post3204448)) \\ | + | Here are the 4 kick only (4 bolt) rear motor mounts. ((Dr Dick of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/112326-a-photo-catalog-of-ironhead-parts/page9#post2391464)) \\ |
From left to right (each pic below): | From left to right (each pic below): | ||
- 1952-1956 k model (iron). \\ Note the smaller hole for kicker shaft. The K kicker shaft used a smaller thrust collar than XL. | - 1952-1956 k model (iron). \\ Note the smaller hole for kicker shaft. The K kicker shaft used a smaller thrust collar than XL. | ||
- 1957-E1962 (iron). | - 1957-E1962 (iron). | ||
- | - The third is belived to be an XR or R model (aluminium). \\ It does not use and is not machined for the steel inserts for the lower bolts. \\ It came with a 60 XLR basket. | + | - The third is believed to be an XR or R model (aluminium). \\ It does not use and is not machined for the steel inserts for the lower bolts. \\ It came with a 60 XLR basket. |
- L1962-up uses the steel inserts for the lower bolts. | - L1962-up uses the steel inserts for the lower bolts. | ||
- | The first 3 use the 2-1/16" long lower bolts(when not using the passenger peg mount). \\ | + | The first 3 use the 2-1/16" long lower bolts (when not using the passenger peg mount). \\ |
The late one uses 2-1/4" long lower bolts (when not using the passenger peg mount). \\ | The late one uses 2-1/4" long lower bolts (when not using the passenger peg mount). \\ | ||
- | {{techtalk:ih:engmech:rear_motor_mounts_1_by_dr_dick.jpg?direct&300|}} ((photo by Dr Dick of the XLFORUM http://xlforum.net/forums/showthread.php?p=3204448#post3204448)) {{techtalk:ih:engmech:rear_motor_mounts_2_by_dr_dick.jpg?direct&300|}} ((photo by Dr Dick of the XLFORUM http://xlforum.net/forums/showthread.php?p=3204448#post3204448)) \\ | + | {{techtalk:ih:engmech:rear_motor_mounts_1_by_dr_dick.jpg?direct&300|}} ((photo by Dr Dick of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/112326-a-photo-catalog-of-ironhead-parts/page9#post2391464)) {{techtalk:ih:engmech:rear_motor_mounts_2_by_dr_dick.jpg?direct&300|}} ((photo by Dr Dick of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/112326-a-photo-catalog-of-ironhead-parts/page9#post2391464)) \\ |
The key to understanding the evolution of these is knowing that 60-down used a 6 bolt lower battery tray and 61-up used a 4 bolt battery tray. \\ | The key to understanding the evolution of these is knowing that 60-down used a 6 bolt lower battery tray and 61-up used a 4 bolt battery tray. \\ | ||
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The two bolts at top flange were no longer incorporated into the tray, so the mounts were not milled. \\ | The two bolts at top flange were no longer incorporated into the tray, so the mounts were not milled. \\ | ||
- | {{techtalk:ih:engmech:rear_motor_mounts_3_by_dr_dick.jpg?direct&300|}} ((photo by Dr Dick of the XLFORUM http://xlforum.net/forums/showthread.php?p=3246441#post3246441)) {{:techtalk:ih:engmech:rear_motor_mount_by_murph1068.jpg?direct&300|}} ((photo by murph1068 of the XLFORUM http://xlforum.net/forums/showthread.php?t=2075011)) \\ | + | {{techtalk:ih:engmech:rear_motor_mounts_3_by_dr_dick.jpg?direct&300|}} ((photo by Dr Dick of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/112326-a-photo-catalog-of-ironhead-parts/page9#post2391464)) {{:techtalk:ih:engmech:rear_motor_mount_by_murph1068.jpg?direct&300|}} ((photo by murph1068 of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/198269-1960-xlch-resto-rider?t=2075011)) \\ |
More 16201-58 pics: \\ | More 16201-58 pics: \\ | ||
This mount could be had in 1960 for $25.70 \\ | This mount could be had in 1960 for $25.70 \\ | ||
- | {{techtalk:ih:engmech:16201-58_motor_mount_pic_1_by_dr_dick.jpg?direct&300|}} ((photo by Dr Dick of the XLFORUM http://xlforum.net/forums/showthread.php?t=1062720&page=21)) {{techtalk:ih:engmech:16201-58_motor_mount_pic_2_by_dr_dick.jpg?direct&300|}} ((photo by Dr Dick of the XLFORUM http://xlforum.net/forums/showthread.php?t=1062720&page=21)) \\ | + | {{techtalk:ih:engmech:16201-58_motor_mount_pic_1_by_dr_dick.jpg?direct&300|}} ((photo by Dr Dick of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/112326-a-photo-catalog-of-ironhead-parts/page21?t=1062720&page=21)) {{techtalk:ih:engmech:16201-58_motor_mount_pic_2_by_dr_dick.jpg?direct&300|}} ((photo by Dr Dick of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/112326-a-photo-catalog-of-ironhead-parts/page21?t=1062720&page=21)) \\ |
- | {{techtalk:ih:engmech:16201-58_motor_mount_pic_3_by_dr_dick.jpg?direct&300|}} ((photo by Dr Dick of the XLFORUM http://xlforum.net/forums/showthread.php?t=1062720&page=21)) {{techtalk:ih:engmech:16201-58_motor_mount_pic_4_by_dr_dick.jpg?direct&300|}} ((photo by Dr Dick of the XLFORUM http://xlforum.net/forums/showthread.php?t=1062720&page=21)) \\ | + | {{techtalk:ih:engmech:16201-58_motor_mount_pic_3_by_dr_dick.jpg?direct&300|}} ((photo by Dr Dick of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/112326-a-photo-catalog-of-ironhead-parts/page21?t=1062720&page=21)) {{techtalk:ih:engmech:16201-58_motor_mount_pic_4_by_dr_dick.jpg?direct&300|}} ((photo by Dr Dick of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/112326-a-photo-catalog-of-ironhead-parts/page21?t=1062720&page=21)) \\ |
16203-67 pics: \\ | 16203-67 pics: \\ | ||
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{{:techtalk:ih:engmech:motor_mount_rear_67-81_pic3_by_rusty_dusty_motorcycle_parts.jpg?direct&300|}} ((photo courtesy of Ebay seller, Rusty Dusty Motorcycle Parts. [[https://www.ebay.com/str/bialystreasures?_trksid=p2047675.l2563|Link to Ebay Store]] )) {{:techtalk:ih:engmech:motor_mount_rear_67-81_pic4_by_rusty_dusty_motorcycle_parts.jpg?direct&300|}} ((photo courtesy of Ebay seller, Rusty Dusty Motorcycle Parts. [[https://www.ebay.com/str/bialystreasures?_trksid=p2047675.l2563|Link to Ebay Store]] )) {{:techtalk:ih:engmech:motor_mount_rear_67-81_pic5_by_rusty_dusty_motorcycle_parts.jpg?direct&300|}} ((photo courtesy of Ebay seller, Rusty Dusty Motorcycle Parts. [[https://www.ebay.com/str/bialystreasures?_trksid=p2047675.l2563|Link to Ebay Store]] )) \\ | {{:techtalk:ih:engmech:motor_mount_rear_67-81_pic3_by_rusty_dusty_motorcycle_parts.jpg?direct&300|}} ((photo courtesy of Ebay seller, Rusty Dusty Motorcycle Parts. [[https://www.ebay.com/str/bialystreasures?_trksid=p2047675.l2563|Link to Ebay Store]] )) {{:techtalk:ih:engmech:motor_mount_rear_67-81_pic4_by_rusty_dusty_motorcycle_parts.jpg?direct&300|}} ((photo courtesy of Ebay seller, Rusty Dusty Motorcycle Parts. [[https://www.ebay.com/str/bialystreasures?_trksid=p2047675.l2563|Link to Ebay Store]] )) {{:techtalk:ih:engmech:motor_mount_rear_67-81_pic5_by_rusty_dusty_motorcycle_parts.jpg?direct&300|}} ((photo courtesy of Ebay seller, Rusty Dusty Motorcycle Parts. [[https://www.ebay.com/str/bialystreasures?_trksid=p2047675.l2563|Link to Ebay Store]] )) \\ | ||
- | ===== 1982-1990 rear mounts ===== | + | ===== 1982-1990 Rear Mounts ===== |
- | 1982-1990 mounts offset the engine 13/32" to the left of the position for pre 1982 engines and don't have the hole in them for the kicker shaft to go through. ((billeuze of the XLFORUM http://xlforum.net/forums/showthread.php?p=5791608&highlight=motor+mount#post5791608)) \\ | + | 1982-1990 mounts offset the engine 13/32" to the left of the position for pre 1982 engines and don't have the hole in them for the kicker shaft to go through. ((billeuze of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/198233-cracked-motor-mount/page4?highlight=motor+mount#post4358785)) \\ |
1984-1990 Rear Mount: \\ | 1984-1990 Rear Mount: \\ | ||
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* **1977-1985**. All 3 holes are slotted. \\ This should not be used on 76< frames. | * **1977-1985**. All 3 holes are slotted. \\ This should not be used on 76< frames. | ||
- | | 1957-E1971 straddle mount ((photo by Dr Dick of the XLFORUM http://xlforum.net/forums/showpost.php?p=5079143&postcount=8)) | L1971-1976 straddle mount ((photo courtesy of TomsCyberShop.com www.TomsCyberShop.com)) | | + | | 1957-E1971 straddle mount ((photo by Ebay seller, animalhouse2010 [[https://www.ebay.com/str/animalhouse2010?_trksid=p2047675.l2563|Link to Ebay Store]] ))| L1971-1976 straddle mount ((photo courtesy of TomsCyberShop.com www.TomsCyberShop.com)) | |
- | |{{techtalk:ih:engmech:sportster_top_mount_1_by_dr_dick.jpg?direct&300|}}|{{:techtalk:ih:engmech:motor_mount_l1971-1976_16250-57_by_tomscybershop.jpg?direct&300|}}| | + | |{{:techtalk:ih:engmech:motor_mount_center_straddle_1957-e1971_16250-75_by_animalhouse2010.jpg?direct&300|}}|{{:techtalk:ih:engmech:motor_mount_center_straddle_l1971-1976_16250-57_by_tomscybershop.jpg?direct&300|}}| |
| 1958 XLC / XLCH, 1965-1976 XLH/XLCH Cross Brace ((photos courtesy of Ebay seller, rdpierce13. [[https://www.ebay.com/sch/rdpierce13/m.html?item=152823091671&ul_noapp=true&rt=nc&_trksid=p2047675.l2562|Link to seller's items for sale]] )) || Measurements taken on after market mounts. ((photo by wagoneer12 of the XLFORUM http://xlforum.net/forums/showthread.php?t=1836118&page=2)) | | | 1958 XLC / XLCH, 1965-1976 XLH/XLCH Cross Brace ((photos courtesy of Ebay seller, rdpierce13. [[https://www.ebay.com/sch/rdpierce13/m.html?item=152823091671&ul_noapp=true&rt=nc&_trksid=p2047675.l2562|Link to seller's items for sale]] )) || Measurements taken on after market mounts. ((photo by wagoneer12 of the XLFORUM http://xlforum.net/forums/showthread.php?t=1836118&page=2)) | |