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Trail Gear Trail Creeper Dual Transfer Case Adapter, 21 Spline

  • Dual Transfer Case Adapter
  • Increased Strength
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Pricing: $399.00


Trail-Gear now offers its own dual transfer case kit for Toyota Pickup and 4Runner applications. Matt Messer has produced thousands of doublers for other off-road companies and over the years has looked at how to improve the quality and price. The result of that effort is the Trail-Creeper dual adapter.

Trail-Gear believes that you won't find a better, more reliable product anywhere, at any price. We have greatly increased the oiling flow in and around the adapter for cooler operation. We have increased the strength of the casting by making thicker walls and creating huge oversized gussets. A special retainer ring securely stabilizes the main bearing to prevent bearing play. Other adapters in the market only use a light gauge snap ring to hold the bearing in place. Tight tolerances on the coupler ensure long life and prevent striped out input gears.

Installation requires an additional top shifting Toyota gear-driven transfer case, drive shaft modifications, and floorboard modifications. Assembled dual adapter unit is 6.5'' long. In stock and ready to ship.

Kit Includes:

  • Heavy Duty Aluminum Adapter Plate
  • Heavy Duty Coupler
  • Cage & Main Bearings Installed
  • Replacement Transmission Output Seal
  • Magnetic Drain Plug
  • Shift Knob
  • Mounting Hardware
  • Transfer Case and Transmission Block Off Plates

Why Buy Trail-Gear Dual Adapter?

  • High Quality Materials
  • Precision Fitting Coupler for Long Life
  • Lifetime Warranty

Application List



Splines: 21


  • 100001-1-KIT
  • 100001-1-KIT
  • Trail Gear
  • New

Shipping Information

  • Item Requires Shipping
  • 15.0 lbs.
  • W13.0000” x H4.5000” x L13.0000”

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