Transfer Case Line-Ups

Transfer Case Gears and Adapters

Why you should consider a Marlin Crawler
Dual Case Adapter Design
  • Created by Marlin Crawler in 1994
  • World's strongest main shaft bearing
    • 59% wider double row design
    • 158% higher load rating
    • 8-times more rigid [1] [2]
  • World's strongest coupler
    • High strength chromoly steel
    • World's only thrust washer lock system
    • Radiused for superior oiling
  • World's strongest lower cage bearing
    • 42% larger rollers
    • 52% higher load rating
Explore our dual case design
4.70:1 Gear Set Design
  • Created by Marlin Crawler in 1995
  • World's strongest input design
    • Total-Spline™ technology
    • 65% more spline contact area
    • 15% larger minimum diameter
    • World's only integrated oil pump
  • World's strongest counter shaft design
    • 42% wider teeth
    • Oversized shank
    • World's only integrated oil pump
  • World's most advanced oil pump system
    • Features six independent oil pumps
Explore our low range gear design

Pickup & 4Runner Kits (1979-1995)

Marlin Crawler was the first to bring dual transfer cases to the USA and the first in the world to bring low range gear kits to the Toyota market. As the leader in Toyota transfer cases with over 18 years experience, we build the strongest and most reliable units in the world, period. We can give you the low range, slow Crawling gears you are looking for.

Dual Crawler Kits

Single Case and Low Range Gear Kits

We are the originator in Toyota low range gear sets and offer the strongest designs in the world. Our exclusive Total-Spline™ Technology strengthens the input by nearly double and provides maximum spline contact to prolong coupler life and prevent strip-outs. We offer do-it-yourself gear kits or fully built transfer case units.

Single Case and Low Range Gear Kits

TacoBox Tacoma/4Runner/Tundra/FJ Cruiser Kits

Dual case crawler applications for all 1995 to current Tacoma's, 4Runner's, Tundra's, & FJ-Cruiser's. All configurations are supported including V6, 4-cylinder, manual & automatics. Applications to support factory left-hand or right-hand front drive shaft output for solid axle swap configurations are available.

Tacoma Dual Crawler Kits

ToyBox FJ40/FJ60 Dual Case Kits (1958-1987)

We have the dual case Crawler solution for your FJ40, FJ45, FJ55, or FJ60 Land Cruiser. Available in either 2.28:1 or 4.70:1 ratios. Transmission applications include SM420, SM465, H41, H42, and 3 & 4 speed Land Cruiser transfer cases.

Land Cruiser Dual Crawler Kits

Transmission-to-Transfer Case Adapters

Looking to run our reliable transfer case products behind your 6 or 8-cylinder drive train? Click here to see if we have the adapter plate that's right for you!

Bolt Pattern Conversion Plate Kit

Interior Photo Gallery

Check out some awesome pictures of our transfer case products installed in our customer rigs!

Interior Pictures

Transfer Case Video Gallery

We've got a nice collection of videos demonstrating what our transfer case products can do for you!

Transfer Case Video Gallery

Demonstration of how the Marlin Crawler changed the way the world goes off-roading since 1994!