Reputation

HD EcoSeal

HD Flange

The Toyota 7.5″ 4cyl or V6 IFS Spartan Locker is a mechanical locker that installs into your stock carrier. This compact and simple design rivals much more expensive lockers. The Spartan Locker features a revolutionary spring-and-pin design that makes this drop-in locker stronger than the Lock Right locker. It features oversized pins (larger than the Lock Right) while the couplers and drivers are made from 9310 chromoly steel to compensate in strength.

These units provide affordable traction without the need of a professional installation. Each Spartan Locker carries a one year warranty against defect and is recommended for lighter vehicles with 35″ or smaller tires.

Every Differential we build comes with our EcoSeal Technology (more info) and the highest quality differential gears on the planet (why we trust and run Yukon Gears).

All 3rd members are assembled with trail proven Yukon R&P gears, new high quality Yukon setup kit with Japanese bearings, new Spartan locker, our Heavy Duty EcoSeal pinion seal, our Heavy Duty pinion flange, and our Heavy Duty solid spacer kit where applicable. Please follow our R&P break in procedure to maximize the life of your new 3rd member.