Dana 18 Transfer Case Parts & Upgrades for Ford GPW
Dana 18 Transfer Case Replacement Parts & Gaskets: Bearings, Cups, Gaskets, Seals & More.
Secure your vintage military Jeep's unstoppable 4WD performance. We offer a comprehensive catalog for the Dana 18 transfer case of the Ford GPW – from essential housing gasket configurations to heavy-duty output bearings and factory-correct shift levers.- Airtight Sealing: Crown main housing gaskets, rear output seals, shifter shaft seals, front output seals, and Omix oil pan cover gaskets.
- Bearing Hardware: Front output driveshaft bearings complete with precision-matched cups by Crown.
- Drivetrain Hardware: Genuine Spicer input/output yoke nuts, yoke flat washers, and Crown main shaft lock nut washers.
- Shifter Linkage: Shift rail detent springs, interlock balls, and factory-style manual shift knobs by Crown.
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Wartime 4WD Engineering Rebuild: Premium Transfer Case Solutions for Your Ford GPW.
The heavy cast-iron Dana 18 solid transfer case (Spicer 18) is the mechanical backbone that defined the legendary, unstoppable off-road performance of the 1941–1945 Ford GPW military Jeep. Featuring a highly distinct offset-output layout where both front and rear driveshafts exit on the passenger side of the vehicle, this assembly is subjected to severe radial torque loads. Over eight decades of historical convoy runs, storage, or tough trail use, original paper shims and oil seals inevitably degrade, causing severe gear fluid leaks and drivetrain play. Our specialized online inventory features professional-grade replacement hardware to successfully rebuild and seal your vintage gear-driven transfer case back to original standards.
Authentic Quality Engineering for Historic Drivetrains: Crown, Spicer & Omix.
For full-scale mechanical overhauls and a leak-free assembly, we stock a comprehensive selection of professional-grade seals. Re-seal your casting seams perfectly with transfer case housing gaskets, output extension gaskets, and shifter shaft oil seals from Crown Automotive, paired with precision oil pan cover gaskets from Omix. Eliminate front drivetrain growl and bearing play effectively with premium replacement front output shaft bearings, packed complete with heavy-duty bearing cups and output seals.Secure your mechanical connection to the universal joints using high-tensile input/output yoke nuts from Dana Spicer, matching Crown shaft nuts, Spicer yoke flat washers, and Crown main shaft lock washer plates. We also restore data-proven functionality to the classic twin-stick cockpit controls, supplying replacement shift rail detent springs, mechanical interlock pins/balls, and factory-correct shift knobs from Crown to preserve that showroom military look inside your cabin.