TRE 4×4 TR100 Air Locking Differential – Rear axle, 27 Spline – Jeep

TRE 4×4 TR100 air locking differential – rear axle

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 TR100 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 TR100
• Actuation: Pneumatic (air), switch operated
• Splines: 27
• Axle: Dana 30, 27
• Gear ratios: 3.73 – 5.38
• Fitting position: Rear axle
• Vehicle make: Jeep
• Warranty: 12 months
• Weight: 14 kg

Vehicle application

• 2007-2018 Wrangler JK-JK (Front Axle)
• 1971 – 1986 Wrangler CJ (Front Axle)
• 2008 – 2012 Liberty-Cherokee KK (Front Axle)
• 2002 – 2007 Liberty-Cherokee KJ (Front Axle)
• 1993 – 1998 Grand Cherokee ZJ-ZG (Front Axle)
• 1999 – 2004 Grand Cherokee WJ-WG (Front Axle)
• 1984 – 2001 Cherokee XJ (Front Axle)
• 1996 – 2006 Wrangler TJ-LJ

Check the TRE 4×4 locking differential catalogue and your axle type before ordering – fitment depends on spline count and crown wheel ratio, not model name alone.

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.