TRE 4×4 TR131 Air Locking Differential – 33 Spline – Toyota

TRE 4×4 TR131 air locking differential

An open differential sends torque to the wheel with the least traction, which is why a single lifted wheel can stop a 4×4 completely. The TRE 4×4 TR131 air locker eliminates that: engage it on demand for 100% traction, disengage it and normal on-road manners return.

Technical specification

• Model: TRE 4×4 TR131
• Actuation: Pneumatic (air), switch operated
• Splines: 33
• Planetary diameter: 33 mm
• Vehicle make: Toyota
• Warranty: 12 months
• Weight: 14 kg

Vehicle application

Suits Toyota with a 33-spline axle. Confirm spline count and crown wheel ratio against your own axle before ordering.

Key benefits

• 100% traction on demand: both wheels driven at the same speed when locked
• Fully open when off: no effect on steering, tyre wear or road manners
• Fast engagement: air actuation locks quickly and repeatably
• Built to last: manufactured from high-grade materials for heavy off-road loads
• Proven design: TRE 4×4 lockers are in use in over 80 countries
• Front and rear options available across most 4WD and 2WD axles

What else you need

This locker is air actuated and requires the TRE 4×4 12V air compressor to operate. The same compressor can also be used to re-inflate tyres after airing down.

Installation

Fitting a locking differential means removing and re-shimming the differential, so it must be carried out by a specialist 4×4 workshop. Incorrect setup will damage the crown wheel and pinion. Supplied with a 12-month warranty.