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1984 JEEP SCRAMBLER  - Advance Adapters GM TH400 Transmission To Dana 300 Transfer Case - 50-6400 - 50-6400

Advance Adapters GM TH400 Transmission To Dana 300 Transfer Case - 50-6400

Advance Adapters | Part Number: ADV50-6400


  • Fitment: Direct Fit
  • In_Stock: In Stock
  • In_Stock: In Stock


  • TH400
  • Dana 300 transfer case


For use with 1965-88 GM or AMC TH 400 transmission and will require driveline modifications. This kit fits 1980-86 Dana model 300 transfer cases. This driveline combination may be too long for use in CJ5 applications. Adapter thickness is 4.232. Includes new output shaft and mounting hardware. Additional parts needed: part #716021 transfer case mount, #716010 vacuum modulator and #G104 Chevy small block flexplate 283-350. This adapter kit requires disassembly of transmission for shaft change.


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Advance Adapters got its start in Downey, California in 1971 with a single adapter mating a Muncie car 4-speed to a Jeep Dana 18 transfer case. Eventually headers, overdrives, motor mounts and linkage brackets were added to the offerings to complement their core adapter components. When interest in rock crawling spiked in the mid-1990s, Advance Adapters offered low ratio transmission swaps then switched gears into the ultra-low gear transfer case arena. Today, the company is based in Paso Robles, California and their engine and transmission conversions for Jeeps are in kit form and sold as individual components. Shop Advance Adapters Now