The Dana 20 transfer case is a good, strong cast iron transfer case; however, with the introduction of the various low gear options for this unit and the popularity of rock crawling, a growing concern for drivetrain reliability has materialized. Since low gear kits increase the torque to the output shaft and rock crawling usually demands tire size, we’ve developed a heavy-duty rear output shaft kit for the Dana 20 transfer case to add strength and reliability to your drivetrain. Our kit fits all Dana 20 transfer cases with or without a low gear kit installed. The stock Dana 20 output shaft is a 1-1/8” diameter 10 spline, and our new output shaft is a larger 1-3/8” diameter 32 spline output. The output shaft kit is approximately 1.5” longer than your stock tailhousing; however, you do gain the option of calibrating your speedometer to compensate for a different axle ratio and/or larger tires. Our kits come complete with a new tailhousing, output shaft, tapered roller bearings, yoke, and speedometer drive. When you require strength and reliability, install the Advance Adapters H.D. Dana 20 output shaft kit.
For yoke options see the Atlas yoke chart (click here)
Bill Of Materials
Products specifications
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Transfer Cases
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Jeep Dana Spicer 20 (6 Spline Input) |
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