Dual Transfer Case Adapter Kit

Getting to the end of a rocky trail can be challenging for even the most rugged off-road vehicles. If you routinely use your rig for rock crawling, you may need a gear lower than your 4X4's lowest gear. For a power boost you can trust, 4WheelParts.com is your one-stop shop. Our extensive inventory of dual transfer case adapter kits helps you add a granny gear to your machine. Rather than avoiding tough trails, off-road with confidence by choose the best dual transfer case for sale from our warehouse.

Off-Road Like a Boss
When you encounter rocks, steep hills and downed limbs, you need additional power to get over them. Unfortunately, your truck's lowest gear may be inadequate for extreme off-roading. By installing a Tacoma crawl box, you combine the reduction and 4WD sections of your rig's transfer case. The result is a lower gear that helps you overcome off-road obstacles. Use our select vehicle tool to be certain the dual transfer case components you are purchasing integrate seamlessly with your rig's other systems.

Trust Our Expertise
Any time you work on your 4X4, you need some important information about your machine. When you are looking through our selection for the right adapter kit for trucks, Jeeps or SUVs, be sure you review our articles and buyer guides. If you need additional assistance, our parts experts are happy to answer your questions. With the right information, you turn your stock vehicle into an off-road monster.

Upgrade Today
Part of the fun of owning a 4X4 is thinking of ways to fully customize it. When you order from 4 Wheel Parts, you don't have to put off essential projects. Instead, you take advantage of our low prices, daily deals and clearance specials to upgrade your machine as quickly as possible. Spend a few minutes looking through our comprehensive selection of top-quality parts and complete your order today.

Dual Transfer Case Adapter Kit

Make Sure It Fits Your Vehicle

7 Product Groups
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    Trail Gear Trail-Creeper Dual Transfer Case Adapter

    Trail Gear Trail-Creeper Dual Transfer Case Adapter

    From $2,896.74

    5.0 5.0 (1)

    Advance Adapter GM Transmission to Transfer Case Adapter

    Advance Adapter GM Transmission to Transfer Case Adapter

    From $476.99

    4.7 4.7 (3)
    On Sale

    Advance Adapter RubiCrawler Crawl Gearboxes

    Advance Adapter Rubi Crawler Box

    From $2,228.99

    On Sale

    Trail Gear Tacoma Crawl Box Adapter Plate

    Trail Gear Tacoma Crawl Box Adapter Plate

    From $545.27

    Trail Gear Trail-Creeper Single Transfer Case Adapter

    Trail Gear Trail-Creeper Single Transfer Case Adapter

    From $1,762.74

    Advance Adapters Borg Warner T10 Transmission Transfercase Adapter

    Advance Adapters Borg Warner T10 Transmission Transfercase Adapter

    From $512.99

    On Sale

    Advance Adapters Dana 300 Tailshaft Conversion

    Advance Adapters Dana 300 Tailshaft Conversion

    From $499.99

    On Sale
    61 Products
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    Advance Adapters GM 4L60E Transmission To NP231 23 Spline Transfer Case Adapter - 50-0402

    $510.99

    $459.89

    • Fitment: Universal Fit
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    Free! Curbside & In-Store Pickup: 4 Wheel Parts Glen Burnie #250 Ships Directly From Manufacturer Timing based on Manufacturer's availability.
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  • Advance Adapters Atlas Control Module - 300377

    $441.99

    $397.79

    • Fitment: Direct Fit
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    Free! Curbside & In-Store Pickup: 4 Wheel Parts Glen Burnie #250 Ships Directly From Manufacturer Timing based on Manufacturer's availability.
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  • Advance Adapters GM TH400 Transmission To Dana 300 Transfer Case - 50-6400

    $668.99

    $602.09

    Free! Curbside & In-Store Pickup: 4 Wheel Parts Glen Burnie #250 Ships Directly From Manufacturer Timing based on Manufacturer's availability.
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  • Advance Adapters 42RLE Rubicrawler Crawler Box - RUBI-JKAD

    $2,537.99

    $2,284.19

    • Fitment: Universal Fit
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    Curbside & In-Store Pickup: 4 Wheel Parts Glen Burnie #250 Ships Directly From Manufacturer Timing based on Manufacturer's availability.
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  • Get it installed from $1088.00 each. ?

  • Advance Adapters TJ Rubicrawler - RUBI-TJ

    $2,228.99

    $2,006.09

    • Fitment: Universal Fit
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    Curbside & In-Store Pickup: 4 Wheel Parts Glen Burnie #250 Ships Directly From Manufacturer Timing based on Manufacturer's availability.
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  • Advance Adapters GM TH400 Transmission To NP231 Transfer Case Adapter - 50-6402

    $600.99

    $540.89

    Free! Curbside & In-Store Pickup: 4 Wheel Parts Glen Burnie #250 Ships Directly From Manufacturer Timing based on Manufacturer's availability.
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  • Advance Adapters Atlas Control Module - 300377A

    $419.99

    $377.99

    • Fitment: Direct Fit
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    Free! Curbside & In-Store Pickup: 4 Wheel Parts Glen Burnie #250 Ships Directly From Manufacturer Timing based on Manufacturer's availability.
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  • Advance Adapters GM SM465 Transmission To Jeep Dana 18/20 Transfer Case - 50-4703

    $626.99

    $564.29

    • At 7/8 inch in length, our adapter kit is the shortest on the market
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    Free! Curbside & In-Store Pickup: 4 Wheel Parts Glen Burnie #250 Ships Directly From Manufacturer Timing based on Manufacturer's availability. View Other Stores

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  • Advance Adapters GM TH350 Transmission To Dana 300 Transfer Case Adapter - 50-6300

    $538.99

    $485.09

    Free! Curbside & In-Store Pickup: 4 Wheel Parts Glen Burnie #250 Ships Directly From Manufacturer Timing based on Manufacturer's availability.
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  • Advance Adapters GM TH700R 2 WD Transmission To Dana 300 Transfer Case Adapter - 50-6303

    $530.99

    $477.89

    Free! Curbside & In-Store Pickup: 4 Wheel Parts Glen Burnie #250 Ships Directly From Manufacturer Timing based on Manufacturer's availability.
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  • Advance Adapters GM TH350 Transmission To Dana 300 or NP231 23 SplineTransfer Case Adapter - 50-6304

    $491.99

    $442.79

    Free! Curbside & In-Store Pickup: 4 Wheel Parts Glen Burnie #250 Ships Directly From Manufacturer Timing based on Manufacturer's availability.
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  • Advance Adapters GM TH350 2WD Transmission To NP231 21spline Transfer Case Adapter - 50-6305

    $587.99

    $529.19

    Free! Curbside & In-Store Pickup: 4 Wheel Parts Glen Burnie #250 Ships Directly From Manufacturer Timing based on Manufacturer's availability. View Other Stores

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  • Advance Adapters GM TH350 4WD Transmission To NP231 21Spline Transfer Case Adapter - 50-6306

    $538.99

    $485.09

    Free! Curbside & In-Store Pickup: 4 Wheel Parts Glen Burnie #250 Ships Directly From Manufacturer Timing based on Manufacturer's availability.
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  • Advance Adapters GM TH350 Transmission To NP 231 Transfer Case Adapter - 50-6307

    $538.99

    $485.09

    Free! Curbside & In-Store Pickup: 4 Wheel Parts Glen Burnie #250 Ships Directly From Manufacturer Timing based on Manufacturer's availability. View Other Stores

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  • Advance Adapters GM TH350 Transmission To NP231 Transfer Case 23 Spline Adapter - 50-6308

    $491.99

    $442.79

    • Fitment: Direct Fit
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    Free! Curbside & In-Store Pickup: 4 Wheel Parts Glen Burnie #250 Ships Directly From Manufacturer Timing based on Manufacturer's availability.
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  • Advance Adapters GM TH700R Transmission To NP231 23 Spline Transfer Case Adapter - 50-9102

    $476.99

    $429.29

    • Fitment: Direct Fit
    • + View More Specs - View Less Specs

    Free! Curbside & In-Store Pickup: 4 Wheel Parts Glen Burnie #250 Ships Directly From Manufacturer Timing based on Manufacturer's availability. View Other Stores

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  • Advance Adapters GM TH700R/4L60 Transmission To NP231 Transfer Case Adapter - 50-9105

    $476.99

    $429.29

    Free! Curbside & In-Store Pickup: 4 Wheel Parts Glen Burnie #250 Ships Directly From Manufacturer Timing based on Manufacturer's availability.
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  • Advance Adapters GM 4L60E Transmission To Atlas 4 Speed Transfer Case Adapter - 50-9305

    $581.99

    $523.79

    Free! Curbside & In-Store Pickup: 4 Wheel Parts Glen Burnie #250 Ships Directly From Manufacturer Timing based on Manufacturer's availability. View Other Stores

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  • Advance Adapters GM SM420 Transmission To Dana 300 Transfer Case Adapter - 50-9702

    $510.99

    $459.89

    Free! Curbside & In-Store Pickup: 4 Wheel Parts Glen Burnie #250 Ships Directly From Manufacturer Timing based on Manufacturer's availability. View Other Stores

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  • Advance Adapters GM SM420 Transmission To NP231 Transfer Case Adapter - 50-9704

    $492.99

    $443.69

    Free! Curbside & In-Store Pickup: 4 Wheel Parts Glen Burnie #250 Ships Directly From Manufacturer Timing based on Manufacturer's availability. View Other Stores

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  • Advance Adapters GM SM420 Transmission To Dana 300/NP231 35 Spline Transfer Case Adapter - 50-9802

    $505.99

    $455.39

    Free! Curbside & In-Store Pickup: 4 Wheel Parts Glen Burnie #250 Ships Directly From Manufacturer Timing based on Manufacturer's availability. View Other Stores

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  • Advance Adapters GM SM465 Transmission To NP231 23 Spline Transfer Case Adapter - 50-9806

    $505.99

    $455.39

    Free! Curbside & In-Store Pickup: 4 Wheel Parts Glen Burnie #250 Ships Directly From Manufacturer Timing based on Manufacturer's availability. View Other Stores

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  • Advance Adapters GM 4L60E Transmission to NP231 23 Spline Transfer Case - 50-0430

    $607.99

    $547.19

    • Fitment: Direct Fit
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    Free! Curbside & In-Store Pickup: 4 Wheel Parts Glen Burnie #250 Ships Directly From Manufacturer Timing based on Manufacturer's availability.
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  • Advance Adapters GM 4L60E Transmission To NP231 21 Spline Transfer Case Adapter - 50-0431

    $617.99

    $556.19

    Free! Curbside & In-Store Pickup: 4 Wheel Parts Glen Burnie #250 Ships Directly From Manufacturer Timing based on Manufacturer's availability.
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