| Flexnumber | Piston | Piston Type | Top Plate Hole/Stud Qty. | Bottom Plate Hole/Stud Qty. | Top Plate Dia. | Bottom Plate Dia. | Collapsed Height | Type | Remarks |
| 38R (38D) | 3183 | 2 | 2 | 9 | 9 | 4.55 | Triple Convolute |
| Flexnumber | Piston | Piston Type | Top Plate Hole/Stud Qty. | Bottom Plate Hole/Stud Qty. | Top Plate Dia. | Bottom Plate Dia. | Collapsed Height | Type | Remarks |
| 38R (38D) | 3183 | 2 | 2 | 9 | 9 | 4.55 | Triple Convolute |