Rockwell American 3,500 lb Tandem Trailer Axle Kit – Electric Brake Axle & Idler Axle – Full Suspension Running Gear Kit – 85” Hub Face / 70” Spring Center – 7,000 lb Capacity

Rockwell American 3,500 lb Tandem Trailer Axle Kit – Electric Brake & Idler Axle – 85” Hub Face / 70” Spring CenterUpgrade or replace your trailer running gear with this complete Rockwell American tandem trailer axle kit. Rated for 3,500 lb per axle (7,000 lb capacity), this running gear kit includes Rockwell American electric brake and idler trailer axles with a full suspension kit—ideal for trailer axle replacement, new trailer builds, or running gear upgrades on utility, cargo, boat, and landscape trailers.Fitment specs: 85” hub face, 70” spring center, 5 on 4.5” bolt pattern — fits most 72” wide trailer frames.Key Features:Complete Tandem Trailer Axle Kit – Includes (1) 3,500 lb electric brake axle with 10” × 2-1/4” brake assemblies and (1) 3,500 lb idler axle for a dependable 7,000 lb tandem axle setup.Full Tandem Trailer Suspension Kit – Includes double-eye leaf springs, U-bolt kits, and a tandem hanger kit with equalizers and shackles, creating a complete trailer suspension system and running gear kit.Heavy-Duty Rockwell American Construction – Durable powder-coated trailer axles resist rust and corrosion while patented Posi-Lube spindles with grease zerk fittings allow easy through-spindle bearing lubrication.What’s Included:(1) Rockwell American 3,500 lb Electric Brake Axle – 85” HF / 70” SC(1) Rockwell American 3,500 lb Idler Axle – 85” HF / 70” SC(4) Double Eye Leaf Springs(2) U-Bolt Kits(1) Tandem Hanger Kit(1) 32 oz Johnson Trailer Parts MugRockwell American trailer axles — a trusted Dexter brand — are built in the USA and engineered for dependable performance across common trailer setups. Supported by expert product knowledge and carefully curated components from the team at Johnson Trailer Parts.

• Fits 72” Wide Trailer Frames – Designed for trailers with a 85” hub face and 70” spring center, featuring a 5 on 4.5” bolt pattern—ideal for tandem utility, cargo, boat, and landscape trailers using 3,500 lb trailer axles.
• Complete Tandem Trailer Axle Kit – Includes (1) 3,500 lb electric brake axle and (1) 3,500 lb idler axle, double-eye leaf springs, U-bolt kits, and a tandem hanger kit with equalizers and shackles, creating a complete tandem trailer suspension kit for faster installation and trailer axle replacement.
• Reliable Braking and Smooth Towing – 10” × 2-1/4” electric brakes on the 3,500 lb brake axle provide dependable stopping power, while 5 on 4.5” hub assemblies ensure compatibility with a wide range of trailer wheels and tire setups.
• Low-Maintenance Trailer Axle Design – Durable powder-coated trailer axles resist rust and corrosion, while patented Posi-Lube spindles with grease zerk fittings allow easy through-spindle bearing lubrication for simplified maintenance and extended service life. Backed by a 2-year manufacturer warranty.
• Rockwell American Trailer Axles – A Dexter brand trusted by trailer builders nationwide, delivering dependable performance and compatibility with common trailer setups. Supported by expert product knowledge and carefully curated components from the team at Johnson Trailer Parts.