Learn More: MAX Lock Locker™

For traction output, strength and durability, the MAX Lock Locker™ is a less expensive investment compared to other competitive lockers sold only as complete case replacement assemblies. It is a prominent product because the MAX Lock Locker™ delivers excellent traction output, the unit itself is very durable, competitively priced, and the installation process is a breeze compare to the installation process of a complete case assembly. MAX Lock Locker™ is an excellent choice for both performance enthusiasts and off-road enthusiasts, who want to enhance their traction capabilities at the track, strip, on- or off-road.

The MAX Lock Locker™ operation is fully automatic. The unit is designed to send the engine power to the wheels with the most traction; the MAX Lock Locker™ will allow you to go where you have never gone before. While traveling straight the MAX Lock Locker™ will lock the axles together similar to a spool, however, when the wheels need to differentiate in a turn, the locker will allow the outside wheel to rotate faster to complete the turn. The internal gears will overrun each other to allow this differentiation.

When operating off-road, the MAX Lock Locker™ will always send the engine power to the wheels that need it most. For example, when navigating through extreme terrain or rock crawling and one of the wheels is in the air, the wheel on the ground will receive the engine power and keep you going. No matter the conditions, whether it is in the snow, sand, mud, ice, etc. The MAX Lock Locker™ will provide you the traction you need. Especially, when you need it the most!

The Importance of Traction

Anyone who has watched a vehicle try to climb a slippery slope has noticed that one wheel will begin to slip before the other. Once this happens, the vehicle struggles trying to make it up the slope. The slipping wheel will spin-up and take power away from the other drive wheel. Even on a level area that is slippery, one drive wheel will break traction and spin-up. A soft surface such as snow, mud or sand will cause the spinning wheel to sink itself in deeper and deeper causing the vehicle to get stuck. Aside from the inconvenience and annoyance of getting stuck, safety issues include becoming stranded, risking injury while trying to free the vehicle, and increasing the chance of having an accident.
Bottom line: Greater traction makes the important safety difference in avoiding getting stuck and enjoying better vehicle control when driving.

Traction is also important for outdoor enjoyment and recreation. Whether you want your muscle car to lay two stripes when coming off the line, are trying to get your family to their favorite skiing spot, or are getting ready for a weekend of recreational off-roading, hunting, or fishing, you need traction.

4 Wheel Drive

The increasing demands for more traction has made 4x4's so popular that they continue to be produced in record numbers year after year. But "4 wheel drive" is a misnomer that misleads consumers into believing they have the ultimate traction vehicle. They don't. Many 4-wheel drive vehicle owners get stuck in situations they believed their vehicles could easily handle. 4x4's are equipped with the same differentials that have the same shortcomings as those equipped in 2-wheel drive vehicles.

Most 4-wheel drive transfer cases automatically direct engine power to the front axles providing what is referred to as "All-Wheel-Drive" operation. Another misnomer These transfer cases are, in effect, center differentials that are technically similar to the front and rear differentials. These differentials track the path of least resistance, which unfortunately is the lowest power delivery path. Loss of traction in just one wheel of many of these "full time" 4x4's and the vehicle will lose available power delivery to the other wheels, thereby running the risk of getting stuck.

Selectable 4-wheel drive center sections will, when engaged, provide better traction than all-wheel drive units. But, they cannot be driven on-highway when engaged due to severe driveline windup that can cause serious breakage or bind-up the driveline so badly that the vehicle will stall. Only after lifting the vehicle to relieve the windup will it be able to be driven further. As a result, most selectable 4-wheel drive vehicles are pre-dominantly driven in basic 2-wheel drive mode. Further, front wheel unlocking hubs are often added to entirely disconnect the front wheels from the front axle. To activate the front wheel drive in these 4x4's, the center transfer case must be manually engaged and both front wheel hubs physically turned until locked. Disconnecting is equally as difficult.

Few 4x4 owners understand the ramifications of 4-wheel drive operation or comprehend the true price of ownership. It's an unfortunate reality that performance remains inadequate after spending thousands of dollars more to purchase a 4-wheel drive vehicle and incurring all the associated recurring costs (including much lower gas mileage, accelerated tire wear, added maintenance expenses, higher registration fees, and significant insurance premium increases). 4x4's can now be upgraded with a MAX Lock Locker™ to achieve the maximum traction performance expected of 4-wheel drive vehicles. 2-wheel drive vehicles can be transformed with the MAX Lock Locker™ to acquire better traction output than most conventional 4 x 4's.

MAX Lock Lockers™

Locking differentials, in effect, lock the two drive wheels together -- somewhat like "spools" that solidly connect the axles together. When powering straight ahead, engine power is equally delivered to both drive wheels. However, unlike spools that will not differentiate when turning and are therefore not street compatible lockers allow full wheel differentiation when cornering. Unlike the poor traction characteristics of open or limited-slip/posi differentials, when one wheel loses traction, locking differentials deliver engine power, not to the slipping wheel, but to the wheel with the highest amount of traction. Although locking differentials deliver excellent traction output and allow full wheel differentiation when turning, they are notoriously harsh and noisy. Disengagement is abrupt, you can hear a ratcheting noise when cornering depending on the background engine noise, engagement is delayed, and significant backlash (slop) is added to the driveline.

Used primarily in heavy industrial applications, that can be more forgiving than passenger cars or trucks, lockers have been adopted out of necessity by extreme off-road and performance-racing enthusiasts despite their harsh drawbacks. The MAX Lock Locker™ is the best alternative for obtaining high traction results whether you on the street, strip, track, on- or –off-road.