It requires a full setup of your ring-and-pinion. A spool is a solid machined piece of metal that eliminates the differential in your axle. The pros are it will always force both tires on an axle to turn. Cons are the installation complexities and stress and strain on the axles and tires. Also like a Lincoln locker, a spool will cause tires to chirp and slide on high-traction surfaces like at the quickie mart up the road.
The next step up from a spool and a Lincoln Locker is what's known in the industry as a "lunchbox locker. There are several companies that make lunchbox lockers with, arguably, the most common being the Powertrax Lock Right, the Aussie Locker, and the Spartan Locker.
These are all automatic or mechanical lockers that do allow some wheel speed differentiation in a turn. They are considered automatic because they lock and unlock on their own depending on how the axle is loaded.
The pros of lunchbox lockers is their cost and their ability to lock and unlock. The cons are that they are only as strong as the differential carrier that they install into, usually an open differential carrier that was never designed for the loads that a locker can cause.
Still, because of their price and function, they are a great choice for anyone who isn't sure if they want a locker or not. They do cause some driving quirks, some clicking or banging, and some vehicle shimmies if you go from coast to drive or drive to coast in a turn. They can be installed or removed from an axle relatively easily. The last type of locker is the full-case, or full-carrier locker.
These are the most expensive but also generally the strongest because they are designed from the get-go to be a locking differential. They come in automatic they engage and disengage automatically or selectable these turn on or off with the flip of a switch using compressed air, a cable, or an electromagnet.
The pros are the strength and functionality, being either locked or unlocked. The cons are they are difficult to install same as a spool, requiring a full setup on your ring-and-pinion and generally the most expensive types of lockers. Still, they may be the most desirable for reliability and strength. Limited-slips or positraction differentials offer some of the benefits of a locker in some situations, but, sorry, they are not lockers.
Limited-slips use clutches, gears, viscous fluids, and more to try to force both wheels on an axle to turn, but generally if one tire has no traction and the other has good traction, the tire with no traction will turn.
And, remember, if you're taking your car on a trip over the holidays - it's always a good idea to see our expert service team to make sure everything's running smoothly before you get on the road or off road! Any 4x4 purchased comes with complimentary membership to join the Motorama 4X4XMORE Club, which includes invites to tag-along tours to explore some of Queensland's most iconic 4x4 locations. Learn more. What Does a Diff Lock Do? Posted by Motorama in Buyer Advice You might not know what everything on your car does, but we're here to help.
Why do diff-locks help? Do I need a diff-lock to go 4x4ing? Search our Stock. Book a Service. Established in , we believe in exceptional customer service, haggle free pricing, 48hr money back guarantee and online vehicle purchase. Buy your next vehicle online today from the comfort of your own sofa. Eaton ELockers use a simple pushbutton and electromagnetic assembly to actuate the engagement collar, which locks the axles.
Others use air known as air lockers and utilize a vacuum diaphragm to actuate the clutch, which locks the axles. These have some added installation complexity and cost due to the required air compressor and airline plumbing.
These types of lockers are primarily used in racing situations. However, they are not as strong as a traditional locker because they rely on the OEM carrier and reliability could become an issue if power adders, larger wheels and tires, and other modifications are made to the vehicle. Differentials and traction control. Locking Differentials. A locking differential provides maximum traction to both wheels even when one is off the ground. What is a locking differential?
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