The two Speed Transfer Case

Published on November 16, 2016
Duration: 7:02

This guide details the operation of the two-speed transfer case on a 'Deuce and a Half' military truck, focusing on when and how to use low and high gears. It explains the benefits of low gear for heavy loads, hills, parades, and maneuvering, and provides a step-by-step procedure for shifting between low and high ranges while the vehicle is in motion, emphasizing the importance of clutch use and matching engine RPMs to avoid component damage.

Quick Summary

The Deuce and a Half's two-speed transfer case offers low and high ranges. Low speed is crucial for heavy loads, hills, parades, and off-roading, providing extra torque. To shift from low to high while moving, use the clutch, move the lever to high, match engine RPMs to truck speed, and then release the clutch.

Chapters

  1. 00:05Intro and Deuce and Guns Channel
  2. 00:30Understanding the Two-Speed Transfer Case
  3. 01:31Reasons to Use Low Speed Transfer Case
  4. 02:34Transfer Case Speed Chart
  5. 03:13Split Shifting Your Deuce and a Half
  6. 04:00Split Shifting Procedure
  7. 04:21Split Shifting in Action
  8. 05:21Important Note on Shifting
  9. 06:01Technical Manual Shift Procedure
  10. 06:46Outro and Call to Action

Frequently Asked Questions

What are the main reasons to use low speed on a Deuce and a Half's transfer case?

Low speed is ideal for starting heavy loads on hills, navigating parade routes, maneuvering in tight parking lots, and for slow, controlled crawling over challenging off-road terrain. It provides increased torque and better control.

How do you properly shift the transfer case on a Deuce and a Half from low to high range while moving?

To shift from low to high range while moving, press the clutch pedal fully down, move the transfer case lever to 'high', increase engine RPMs to match the truck's speed, and then slowly release the clutch pedal.

What happens if you force the transfer case shifter on a Deuce and a Half without using the clutch?

Forcing the transfer case shifter, especially from low to high or vice versa while the truck is moving, can cause severe damage to the transfer case and drivetrain components. It's crucial to use the clutch and match speeds.

What is 'split shifting' on a Deuce and a Half, and why is it done?

Split shifting involves using the transfer case in conjunction with the transmission's gears to create more effective gear ratios. It's done when hauling very heavy loads or towing, allowing for a smoother start and better control on inclines by utilizing lower gear ratios more effectively.

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