Factor 55 Extreme Duty Soft Shackle | 7/8" x 24" | HMPE | GVW 20,000–35,000 lbs

Is This for You?

• You're operating a semi, large utility or dump truck, or tractor with a GVW between 20,000–35,000 lbs and need a soft shackle rated for that load range — 185,000 lb MBS, 37,000 lb WLL, 7/8" HMPE Plasma rope construction, made and tested in the USA.
• You're replacing steel screw pin shackles in a heavy commercial recovery or rigging configuration with a lightweight HMPE alternative that eliminates the projectile hazard of a steel shackle failure under load — and delivers 25–30% higher breaking strength than standard soft shackles at this diameter.
• You're running Closed System Winching® or building a closed-link rigging system for commercial heavy recovery — this shackle is compatible with Factor 55's Closed System Winching technique and rated for the load range that semis, dump trucks, and tractors generate.

The Result

• 185,000 lb MBS / 37,000 lb WLL — a 5:1 safety factor, rated for vehicles with GVW between 20,000–35,000 lbs in semi, large utility truck, dump truck, and tractor recovery applications.
• 25–30% higher verified breaking strength than standard soft shackles at this diameter — lab- and field-tested to consistent, repeatable MBS values.
• HMPE Plasma rope core with woven polyester jacket, Fiber Lock coating, and whipped ends — abrasion and UV protection extended as close to the knot as possible, where unprotected soft shackles fail first.

The 7/8" diameter positions this shackle in the load range between the heavy full-size truck 5/8" (00570 — 12,000–20,000 lb GVW, 102,500 lb MBS) and the mining/military 1-1/8" (00572 — 35,000–55,000 lb GVW, 294,000 lb MBS). The 20,000–35,000 lb GVW range covers semis, large utility and dump trucks, and tractors — commercial vehicles where the 5/8" shackle's 20,500 lb WLL is undersized and the 1-1/8" shackle's 58,000 lb WLL is overspecified. The HMPE Plasma rope core has a higher strength-to-weight ratio than steel wire rope of equivalent diameter, does not corrode, and does not store kinetic energy under tension. When a steel shackle fails under load, the stored elastic energy releases as a high-velocity projectile. An HMPE soft shackle falls to the ground on failure — a critical safety distinction in commercial recovery environments where operators and bystanders are in proximity to the rigging. The woven polyester jacket is whipped and coated with Fiber Lock resin, attached as close to the knot as possible — the knot is the highest-stress and highest-abrasion point in a soft shackle under load. Standard soft shackles leave the knot area unprotected; this design extends jacket coverage to that zone. The 25–30% breaking strength advantage over standard market soft shackles is a function of both the HMPE Plasma rope specification and the knot geometry — Factor 55 lab- and field-tests to consistent, repeatable MBS values.

Audit Table

Factor 55 Soft Shackle Size Selection Guide

• 3/8" x 10" (00066): Jeep, mid-size truck, SUV, UTV — up to 8,500 lb GVW — 43,500 lb MBS
• 3/8" x 20" (00067): Same GVW range with double-loop capability — exceeds 70,000 lb MBS double-looped
• 5/8" x 18" (00570): Heavy full-size truck, loaded trailer, utility truck — 12,000–20,000 lb GVW — 102,500 lb MBS
• 7/8" x 24" (00571): Semi, dump truck, tractor — 20,000–35,000 lb GVW — 185,000 lb MBS ← This product
• 1-1/8" x 24" (00572): Mining, agriculture, military — 35,000–55,000 lb GVW — 294,000 lb MBS

Compatibility

✔ Semis — GVW 20,000–35,000 lbs
✔ Large utility and dump trucks — GVW 20,000–35,000 lbs
✔ Tractors — GVW 20,000–35,000 lbs
✔ Factor 55 Closed System Winching® rigging configurations
✔ Direct replacement for steel screw pin shackles in commercial recovery rigging

✘ Not designed for: Vehicles under 20,000 lbs GVW — see 5/8" (00570) for 12,000–20,000 lb GVW or 3/8" (00066/00067) for up to 8,500 lb GVW
✘ Not designed for: Vehicles exceeding 35,000 lbs GVW — see 1-1/8" soft shackle (00572) for mining/ag/military applications
✘ Not a substitute for: Static tow connections — soft shackles are recovery rigging hardware, not flat-tow connectors

Usage Notes

• Inspect shackle before each use. Do not use a soft shackle with visible cuts, abrasion damage through the jacket to the core, or knot deformation.
• Do not exceed the published WLL of 37,000 lbs under any load condition.
• Keep shackle away from sharp edges under load — the jacket provides abrasion resistance but direct contact with sharp metal edges under tension will damage the core.
• Compatible with Closed System Winching® — verify all other rigging components in the system are also closed-link hardware before executing a closed system recovery.
• Store out of direct UV exposure when not in use.

Engineering Question: What is your vehicle's GVW — loaded or unloaded — and are you replacing steel screw pin shackles in a semi, dump truck, or tractor recovery configuration? The 7/8" shackle is rated for 20,000–35,000 lb GVW. If your GVW is under 20,000 lbs, see the 5/8" version (00570). If your GVW exceeds 35,000 lbs, see the 1-1/8" version (00572).