How to Buy a Transfer Case Housing Extension
Multiple-powered axle vehicles of the all-wheel-drive or four-wheel-drive variety have a drivetrain component known as the transfer case (also known as the jockey box, transfer box, transfer gearbox, or transfer gearcase). As its name suggests, it transfers power from your transmission to the front and rear axles of your car through drive shafts. The transfer case housing extension, meanwhile, is a housing-type reinforcement you can slip into your transfer case to make it more effective in its job of transferring transmission power to your axles every time.
Buying a Transfer Case Housing Extension 101
- Get a Housing Extension with Excellent Synchronization Capabilities: A good transfer case housing extension replacement should be dependable when it comes to enhancing your jockey box's ability to synchronize between the rotation of your front and rear wheels. It should not only increase your transfer box's reach, it should also work in perfect harmony with all its low-range gears typically reserved for off-road use.
- Find a Transfer Case Housing Extension That's Rugged and Durable: Because of the critical role of the transfer case, its housing extension should be reinforced and sturdy enough to protect it from damage. This is why these housings are usually made of tough metals like stainless steel, aircraft-grade aluminum, or aluminum combined with other metals (like brass) to get the perfect ratio of strength and anti-corrosive properties. It should be tough enough to take high-pressure driving, especially for off-road vehicles.
- Choose between Buying a Set versus Buying Individual Products: Transfer case housing can either be sold individually or as a set. An individual extension housing should at the very least be OE-standard and a direct fit to your existing transfer case (you can use your product or part number to check fitment), if not a duplicate of your old housing altogether. A set provides you either multiple housings for your multiple transfer gearboxes or some extra tools for easier housing installation.
Types of Transfer Case Housing Extension
- Married: Your housing extension can also vary in accordance to the type of transfer case it's housing and protecting from damage and debris. A married transfer case is a transfer case type that's bolted unto your transmission, between the rear or main driveshaft and the transmission's output shaft. This means that the housing type of a married transfer case should be shared with the transmission (thus the name that implies both the transfer case and the transmission are married to each other).
- Divorced/independent: As for independent or divorced transfer cases, they require housing extensions that are completely separate from the transmission. This type of transfer case is located down the driveline when compared to the more transmission-connected married transfer case. A short driveshaft connects it to the transmission output shaft. Independent transfer cases use a small, form-fitting housing extension and are commonly seen in very long wheelbase vehicles like military trucks and commercial trucks.
The Consequences of Not Having aTransfer Case Housing Extension Replacement
Once your transfer case housing extension gets busted, you'll need to get a new one ready. If you don't invest in such a product when your original has already been compromised, you'll face dire consequences for doing so. Once damaged, your transfer case will be more exposed to debris that could damage its operation, which will lead to complete loss of your four-wheel-drive or all-wheel-drive maneuverability. It's also quite expensive to replace the transfer case versus just its housing extension.