| Serial # Range | Summary of Change / Description | Part # | Doc # | Download Link |
|---|---|---|---|---|
| 38741 - 44700 | Universal Subframe | 516916 | 416860 | Download Manual |
| 30863 - 38740 | Linkage Body Prop | 516400 | 416853 | Download Manual |
| 30863 - 38740 | O-Ring Ports on Cylinder | 516400 | 416780 | Download Manual |
| 26246/30862 - 26168 | Removed PD Option | 516400 | 416754 | Download Manual |
| 24501 - 26245 | Replaced Upper Lift Plate w/ Angle | 516400 | 416750 | Download Manual |
| 23500 - 24500 | Updated Power Unit Pages | 516400 | 416734 | Download Manual |
| 23100 - 23499 | Redesigned Pivots | 516400 | 416730 | Download Manual |
| 20360 - 23099 | Redesigned Subframe | 516200 | 416530 | Download Manual |
| 16900 - 20359 | Cylinder and Upper and Lower Pivots Changed | 516200 | 416274 | Download Manual |
| 16001 - 16899 | Original Design | 516000 | 416274 | Download Manual |
