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Transfer Case Dana 300 #C300-15-2
Transfer Case Dana 300 #C300-15-2
Transfer Case Dana 300 #C300-15-2
Transfer Case Dana 300 #C300-15-2
Transfer Case Dana 300 #C300-15-2

Transfer Case Dana 300 #C300-15-2

by Jeep City
$2,550.00 - $2,550.00
$2,550.00
$2,550.00 - $2,550.00
$2,550.00

Dana 300 Transfer Case – Jeep CJ (1980s) | Casting No. C300-15-2

The Dana 300 is widely regarded as one of the finest transfer cases ever fitted to a production 4WD vehicle — and that reputation is well earned. Cast iron construction, a 2.61:1 low range ratio, and a compact, adaptable design have made it a favourite among Jeep builders and restorers for decades. If you're rebuilding a CJ or upgrading a project Jeep, a good Dana 300 is one of the best foundations you can start with.

This is a 1980s-era Dana 300 with tailhousing casting number C300-15-2, which identifies it as the early short-output-housing variant (approximately 3.5" rear output housing). It weighs approximately 35kg and measures around 40cm wide — compact enough to fit a wide range of CJ applications without major tunnel modifications.

Compatible Models

  • Jeep CJ-5, CJ-7, CJ-8 Scrambler (1980–1986)
  • Also adapts well to many popular manual and automatic transmissions with appropriate adapter kits

Common Failure Symptoms

Dana 300s are extremely durable, but high-mileage or abused units can develop oil leaks from the input, output, or shift shaft seals, worn shift forks causing difficulty engaging 4WD or low range, and bearing noise under load. In severe cases, the shift rail detents wear out, causing the case to pop out of gear on the trail — a frustrating and potentially dangerous fault when you need 4-low most.

Benefits of the Dana 300

  • 2.61:1 low range — superior crawl ratio compared to the NP208 or NP231 it replaced
  • Cast iron construction — extremely strong and repairable
  • Highly adaptable — compatible with a wide range of transmission adapters
  • Proven off-road pedigree across decades of serious 4WD use

Workshop Notes

  • Identify your transmission output shaft before purchasing — the correct adapter plate is essential for a clean installation.
  • Replace all seals and the front and rear output shaft bearings as a matter of course during any rebuild or swap.
  • Check the shift forks and detent springs for wear before reassembly.
  • Refill with the correct transfer case fluid — consult your workshop manual for the specified type.
  • A driveline angle check is recommended after installation, particularly if the case is being fitted to a different vehicle than it came from.

Related Parts to Inspect

Transfer case gasket and seal kit, front and rear driveshafts, transmission adapter, shift linkage, and skid plate.

Customer FAQs

Q: What's the difference between the early and late Dana 300?
A: The 1980 (early) Dana 300 has a shorter rear output housing of approximately 3.5". Later units have a longer housing. This listing is the early short-housing variant (casting C300-15-2). Confirm which version suits your application before ordering.

Q: Will this bolt directly to my T176 or T18 transmission?
A: The Dana 300 requires a specific adapter plate to mate with different transmissions. It does not bolt directly without the correct adapter. Contact us to discuss your specific transmission and we can advise on compatibility.

Q: Is this a complete unit ready to install?
A: This is a used transfer case. We recommend a full inspection, seal replacement, and fluid change before installation. It is sold as-is and we recommend having it assessed by a drivetrain specialist before fitting.