Dana 18 Transfer Case Parts for Jeep CJ5
Shafts, Bearings, Gaskets & Drivetrain Hardware for Reliable Power Transfer (1955–1971).
Why the Dana 18 Transfer Case in the Jeep CJ5 Wears Out Over the Years.
The Dana 18 transfer case is the heart of the four-wheel-drive system in the Jeep CJ5 built between 1955 and 1971, splitting power from the transmission to the front and rear axles. After decades of service, the intermediate shaft and its needle bearings wear down from constant torque transfer, while oil seals and housing gaskets harden with age and heat and start to leak. Output shafts and bearing cups develop play and wear, and flange nuts or lock washers loosen from vibration on rough trails. The shifter boot, shift knob and poppet ball of the shift lock mechanism also wear out with every gear change. Anyone wanting to keep their CJ5 transfer case tight and road-ready should inspect and replace these wear parts regularly – especially with heavy off-road use.
- Intermediate Shaft & Needle Bearings: The intermediate shaft and matching needle bearing keep power flowing reliably inside the case.
- Gaskets & Oil Seals: The housing gasket keeps transmission fluid where it belongs, while the shift rod oil seal seals the shift lever where it exits the case.
- Driveshaft & Output Hardware: The flange nut and front output bearing secure power transfer to the driveshafts.
- Shift Controls: The shift boot and shift knob deliver precise, clean gear changes.
- Repair Kits & Hardware: The complete small parts repair kit plus the front output gear support a full overhaul.
American Brand Expertise for Your Transfer Case.
Most of the range for the Dana 18 transfer case comes from Crown Automotive – American engineering for shafts, bearings, gaskets, seals and shift hardware in proven reproduction quality. Driveshaft-related components and cover gaskets come from Omix, while lock washers for the flange nut are supplied by Dana Spicer – all three brands rooted in the US with decades of off-road experience.
Your Partner for CJ5 Transfer Case Service.
Whether you need a single gasket, a new needle bearing or a complete transfer case overhaul, we're happy to advise on disassembly order, torque specs for the flange nut and compatibility with T14, T15, T90 or T98 transmissions. If you're unsure about the right oil seal size or bearing fit, we're glad to help there too. Your order ships from stock as fast as possible after payment, so you can get back under the Jeep quickly.