Replacement Dual Case Adapter Couplers



These couplers are designed to work with OEM and Trail-Gear input gear splines. High-strength splined couplers are made from heat-treated and carburized SCM415 alloy steel. Trail-Gear couplers may not work with other manufacturer’s aftermarket gears. 21-Spline or 23-Spline couplers are available. These gears fit RF1A transfer cases.

Additional information

Weight 4 lbs
Dimensions 12 × 7 × 7 in
Input Gear

21-Spline, 23-Spline


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