Jammy TSAP780 Ramp Door Spring Assist Kit – 80 lb Torsion Spring
Part Number / SKU: TSAP780
Complete spring assist kit for 7-foot-wide ramp doors – includes 80 lb right-hand torsion spring, 12′ capacity drums, 150″ stainless cables, and full mounting hardware.
| Part Number | Spring Rating | Cable Length | Drum Capacity |
|---|---|---|---|
| TSAP780 | 80 lb (Right-Hand / Clockwise) | 150″ × 1/8″ Stainless Steel | 12′ Cable Capacity |
About This Product
The Jammy TSAP780 Ramp Door Spring Assist Kit is an OEM-quality spring pack designed for 7-foot-wide enclosed trailer ramp doors weighing up to approximately 160 lb total. Its torsion-spring system provides a balanced, controlled lift to reduce strain and make operation smooth and secure.
Features
- 1 piece 5.5 × 50 × 700 mm (≈28″) torsion spring rated at 80 lb, right-hand (clockwise) wind
- Pair of 12′ capacity cable drums for up to 12 feet of cable travel
- Pair of 150″ × 1/8″ stainless-steel winding cables
- (3) roof-mount bearing brackets and full hardware pack
- (2) nylon rollers for quiet, stable operation
- Bar not included – reuse or purchase appropriate torsion bar separately
- Jammy OEM build – corrosion-resistant materials and reliable fitment
- Ideal for 7′ wide enclosed cargo trailers or smaller car haulers
Important Clarifications
- Drum Size: “12′ cable drums” indicates total cable travel capacity, not drum diameter (actual drum diameter ≈4–5″).
- Cable Length: Each kit includes 150″ cables. Verify length prior to installation.
- Door Weight: Designed for doors up to ~160 lb total (≈80 lb hinged section).
Specifications
| Spring Size | 5.5 × 50 × 700 mm (≈28″) |
| Spring Rating | 80 lb (Right-Hand / Clockwise) |
| Cable Type | 150″ × 1/8″ Stainless Steel (pair) |
| Cable Drum Capacity | 12′ Cable Travel |
| Mount Type | Roof-Mount Bearing Bracket Set (3-piece) |
| Rollers | Nylon – pair included |
| Recommended Door Width / Weight | Up to 7′ wide, ~160 lb total door weight |
| Manufacturer | Jammy, OEM Supplier |
Note: Verify spring wind direction and cable length before installation. Always follow safety guidelines when tensioning torsion springs. Mounting bar sold separately.
Need other spring assemblies or hardware? Visit our eBay store for the full Jammy TSAP lineup and related ramp door accessories.