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TJM Pro Locker and Jeep Wrangler YJ & Cherokee XJ with AMC Model 35 Rear
Nitro Front & Rear Gear Package

TJM Air Locker and Jeep Wrangler TJ Gear Package

List Price: $1,539.99
Price: $1,065.22

Product Code: TJM168PL21-GPXJYJ35

Gear Ratio*:

Nitro Gear Oil:

Description Vehicle Applications

TJM Pro Locker
and AMC Model 35 Rear
Nitro Front & Rear Gear Package Kit

1987-1995 Jeep Wrangler YJ
1984-1999 Jeep Cherokee XJ

Differential: Dana 35 Rear
Gear Ratio: 3.54 & Up
Axle Splines: 27
Ring Gear Bolts: 8 (not included)
Manufacturer: TJM
Warranty: 2 Years

Gear Package

Front Differential: Dana 30 Reverse
Rear Differential: Dana (AMC) Model 35
Gear Ratio: 3.73, 4.11, 4.56, 4.88 or 5.13
Manufacturer: Nitro Gear & Axle
Warranty: 2 Years

6 quarts of Nitro Synthetic Plus Gear Lube

Tech Note:
If your Jeep has OEM 3.54 gears, a new front carrier is required NC-D30-4
If your Jeep has OEM 3.07 gears, new front and rear carriers are required NC-M35-4 & NC-D30-4
Carrier's Sold Separately.
Gear Package Kit Includes:
Nitro front ring & pinion
Nitro front Master Install Kit
Nitro rear ring & pinion
Nitro rear Master Install Kit

Suffering from poor performance and reduced fuel economy resulting from oversized tires?

A Nitro gear change will help get that performance and economy back!

If you've fitted larger tires to your vehicle then you are likely experiencing a loss in performance, fuel economy, and more constant transmission gear "hunting" - This is because the larger tires reduce your engine's RPMs below the optimal power band. Re-gearing the differentials in your vehicle is the only way to get your vehicle back into its optimal operating RPM range, thus improving performance and reducing strain on your vehicle's drivetrain. This is especially important for today's vehicles as they feature tall factory gearing and overdrive transmissions which are less tolerant to increase in tire size or the weight of added accessories.

It's a common misconception that gear changes are reserved only to hardcore off-roaders or trucks with huge tires. However, re-gearing is one of the single most beneficial modifications you can make to keep the performance, economy, and durability of your daily-driven 4x4. This is a mod for anyone with larger tires, increased weight, or for increased performance on stock vehicles for towing or increased acceleration.


"To be tested anywhere in the Australian outback is challenging, but to be tested under 'extreme' competition conditions would leave most 4WDrivers shaking in their boots.

Luckily the TJM Pro Locker had been there before; 20 years before, again and again, as we researched and continued to improve its capability.

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.

With a unique one piece cross shaft (instead of the usual three) adding to its strength, as does the hardened thrust washers, 3/8" bolts holding the hemisphere together and larger pinion gears.

And with a separate pneumatic system that has no internal 'o' rings or oil seals adding to its operational simplicity and low maintenance, whether you're a hard core competitor or a weekend wheeler."

Required Parts:
These parts are required for installing this product on your vehicle.
TJM013 air compressor (portable) or
TJM167COMPLD air compressor (compact) or
CKSA12 air compressor (extremely compact, operates up to 2 air lockers, not intended for oversized tire inflation) or
CKMA12 air compressor (compact, operates up to 2 air lockers and will inflate tires when paired with a 171302 ) or
CKMTA12 air compressor (still compact, operates up to 2 air lockers when paired with 171503 , will inflate tires AND run air tools when paired with a 171302 and will run even faster when paired with a 171501 air tank

TJM Diff Locks

  • Unique air operated piston style actuator aims to eliminate the risk of oil being pumped up the airline.
  • Hardened thrust washers and the size of the locking ring make Pro Locker extremely strong in operation.
  • Contains stronger materials and a thicker carrier compared to most standard differentials.
  • Larger pinion gears are used in comparison to most standard differentials.
  • No carrier modification needed other than the drilling and tapping of a bulkhead fitting port.
  • Large pre-tensioned 3/8" bolts hold the Pro Locker carrier case together.
  • Robust design equals less maintenance.
  • Reinforced rubber external hose extension is supplied as standard to minimize the risk of the airline being damaged by debris while driving.
  • Recessed colored L.E.D. cabin switches show clearly when TJM Pro Locker is on or off.
  • Patented design that has been used and proven in the field for over 20 years.

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