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When you’re building or overhauling a heavy triple-axle suspension, this kit gives you everything to hang your springs solidly and keep the system working in sync. It includes eight 3-1/4" tall front, center, and rear hangers, four 7-3/4" long curved equalizers, sixteen 2-5/8" shackle straps, and twenty-four 3" x 9/16" diameter shackle bolts with locknuts. It’s designed for trailers with triple 2,000-lb to 7,000-lb axles, so it’s ready for serious weight and long-haul use.
Uneven roads can make a heavy trailer buck and twist. The 7-3/4" curved equalizers in this kit balance the movement between axles so the suspension flexes together. That shared motion helps reduce bounce and binding, keeping the tires planted and the ride steadier mile after mile.
Correct spacing is key when welding on new hangers. This setup achieves about 4-1/2" or 5" of clearance between the trailer frame and axle, depending on axle diameter. The included chart shows typical hanger distances for common spring sizes—like 29-1/2" between outer hangers and 34" between centers when using 25-1/4" to 26" springs—so you can mock up and verify alignment before the final weld.
Loose suspension hardware leads to wear and noise. The 9/16" diameter shackle bolts in this kit tighten down securely—torque them between 65 and 95 ft-lbs for a firm, long-lasting joint. The locknuts hold torque through vibration and load changes, keeping the hangers, shackles, and equalizers moving smoothly without slop.
Whether you’re upgrading an older rig or fabricating a new triple-axle frame, this kit gives you a clean starting point. With all the hangers and equalizers matched in height and geometry, it’s a straightforward way to mount six double-eye leaf springs and get the suspension back in proper working order.
| Leaf Springs | A - Distance Between Front and 1st-Center Hangers | B - Distance Between Center Hangers | C - Distance Between 2nd-Center and Rear Hangers | D - Distance Between U-Bolts | E - Distance Between Center of Axle and Trailer Frame | Axle Diameter |
|---|---|---|---|---|---|---|
| SP-169275 (1020) | 24-3/4" | 29" | 24-3/4" | 28-1/2" | 4-1/2" | 1-3/4" (typical 2,000-lb trailer axle) |
| SP-219275 (PR722) SP-220275 (PR3) SP-218275 (PR4) SP-212275 (PR4B) SP-111275 (PR5) SP-198275 (PR6) | 29-1/2" | 34" | 29-1/2" | 34" | 5" | 2-3/8" (typical 3,500-lb trailer axle) |
Customer Satisfaction Score:
98% were satisfied with this product
2% of customers were not satisfied
Ratings & Reviews
Camper
9/30/2018
Still working
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Steve
7/1/2020
Very good