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(888) 312-8812 Login Signup| Load Rate | 2250 LB |
| Suspension Grade Type | Standard |
| Leaf Width | 3 IN |
| Axle Orientation | Rear |
| Helper Spring | Yes |
| Bushings Included | No |
| Length Axis 1 | 19.75 IN |
| Length Axis 2 | 19.75 IN |
| Pack Thickness | 1.4375 IN |
| Spring Research Institute Number | 55-037 |
| Free Arch Length | 3 IN |
| Grading Configuration | 4/360 |
| Leaves | 4 |
| Pack Quantity | 4 |
| Brand | Part Number |
|---|---|
| Dayton Parts | 55-037 |
| Navistar | 473725C91 |
| Automann | 55-037 |
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