Transfer Case Parts for Jeep CJ7

Three transfer cases across eleven model years.

Hardly any other component of the CJ7 changed as often as the transfer case. At launch in 1976 two versions ran side by side: the gear-driven cast iron Dana 20 for manual transmission vehicles, and the BorgWarner Quadra-Trac, a full-time four-wheel drive with a differential inside the housing, available exclusively with the automatic. In 1980 the Dana 300 replaced both – geared considerably lower at 2.62:1 and still regarded as the toughest transfer case of the CJ line. Which version sits in your vehicle can be identified clearly from the housing and the tag, and that identification governs every spare part: gears, shafts and bearings are not interchangeable between the three designs. What they share is wear at the intermediate shaft, the oil seals and the bearing preload.

Choose your transfer case

• Dana 20 transfer case (1976-1979): The cast iron unit of the early manual transmission years. Here you will find intermediate gear shaft kits with needle bearings, gears for main and intermediate shaft, bearing cups, shims, gasket kits and the complete shift mechanism.
• Dana 300 transfer case (1980-1986): The largest of the three subcategories, with input and output shafts, gears, bearing kits, shims for setting the preload, overhaul kits, the complete shift linkage including knob and bushings, as well as yokes and transmission mounts.
• Quadra-Trac transfer case (1976-1979): The full-time four-wheel drive of the automatic cars. Currently stocked with wear and mounting parts: the vacuum switch for the front axle engagement, the output shaft seal, plus nut and lock washer for the yoke.

Who makes these parts.

The bulk of all three subcategories comes from Crown Automotive – from a single needle roller to the complete overhaul kit, the US manufacturer has kept the CJ line supplied for decades. Yokes, u-joint straps and pinion nuts are made by Dana Spicer, original equipment manufacturer of these cases and axles. Omix contributes the dual shift linkage boot and Daystar the polyurethane transmission mounts – American production throughout.

Not sure which case you have?

Identifying it is the most important step before ordering: the model year alone is not enough, because two designs were delivered in parallel from 1976 to 1979, and many a CJ7 has been converted over the years. When in doubt, send us a photo of the housing – we will identify it and advise on torque figures, shims and assembly sequence. Dispatch goes out from stock in Germany, shortly after your payment arrives.