4x4 Diff Lockers

TJM Pro Lockers are tested in the rugged Australian outback. We throw everything this diverse country landscape has at them and we do it over and over in the most extreme environments found.
What better testing ground to continuously research and improve Pro Locker’s capability?

easy to use

Today the TJM Pro Locker stands alone. With an innovative air operated differential locker that, at the flick of a cabin switch, allows you to send equal drive to both wheels and the unique piston style actuator eliminates the risk of oil entering the airline.
The Pro Locker’s incredible strength comes from its unique one piece cross shaft (instead of the usual three), hardened thrust washers, 3/8 bolts which hold the hemisphere together and larger pinion gears.

built to last

The separate pneumatic system that has no internal ‘o’ rings or oil seals adds to its operational simplicity and low maintenance, whether you’re a hard core competitor or a weekend wheeler. That is why...
we are so confident in our lockers that
we can offer something no other company can, A LIMITED 5 YEAR WARRANTY.
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