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Transfer Case Crawl Box and Low Gear Set
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Trail Gear Trail-Creeper T-Case Reduction Gear Kits
Trail Gear Trail-Creeper T-Case Reduction Gear KitsFrom $599.99
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- For rock crawling, lower transfer case gears give you the control you need to keep your truck on track. Trail-Gear offers an affordable 4.70:1 gear kit for your gear driven Toyota transfer case. Trail-Creeper T-Case gears are available in 21 and 23 spline configurations. Kits include replacement gears, gaskets and seals. Disassembly and modification of transfer case is required for installation. Input gears are precision ground & micro-polished to guarantee the removal of all surface imperfections in the forging.
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From $599.99
TeraFlex Dana 300 Transfer Case Low Range Gear Sets
TeraFlex Scout Dana 300 Transfer Case Low Range Gear SetFrom $1,016.99
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- Low Range Kit
- Dana 300 transfer case
- Increase your crawl ratio by 50 percent
- A true 4.0:1 low-range ratio
- No driveshaft changes or special shift linkages required
- Comes complete as a 5 gear set, and includes all necessary gaskets and seals, and a new shift rail with increased detent pockets
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From $1,016.99
On Sale
Advance Adapter RubiCrawler Crawl Gearboxes
Advance Adapter Rubi Crawler BoxFrom $2,073.99
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- Installs Between Transmission And Transfer Case
- Does Not Include Shifter Knobs
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From $2,073.99
TeraFlex 2WD Low Range Kit
TeraFlex 2WD Low Range KitFrom $288.99
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- Allows for Low Range Gearing Without Engauging the Front Axle
- Eliminates Drive Train Bind
- Does not require any external modifications
- Avaliable for NP231-J and NP241OR Transfer Cases
- California Residents: WARNING
From $288.99
On Sale
TeraFlex Dana 18 W/OD Transfer Case Low Range Gear Set
TeraFlex Dana 18 W/OD Transfer Case Low Range Gear SetFrom $836.99
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- Low Range Gear Set
- Dana 18
- Includes Intermediate Gear
- Front Output Gear
- Front Sliding Gear
- Bearing
- Shaft Kit
- Gasket Set
- For Use with Saturn and Warn Overdrives
- California Residents: WARNING
From $836.99
On Sale
TeraFlex 241-OR 2Low Kit
TeraFlex 241-OR 2Low KitFrom $290.99
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- Allows for 2WD Low Gear Range
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From $290.99
On Sale
TeraFlex Dana 20 Transfer Case Low Range Gear Set
TeraFlex Dana 20 Transfer Case Low Range Gear SetFrom $1,134.99
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- Low Range Gear Sets
- Dana 20
- Available for Auto or Manual Transmissions
- Converts the stock 2.03:1 ratio to 3.15:1
- Comes complete as a 5 gear set, and includes all necessary gaskets and seals
- California Residents: WARNING
From $1,134.99
On Sale
Advance Adapters Dana 20 Transfer Case Low Gear Sets
Advance Adapters Dana 20 Transfer Case Low Gear SetsFrom $1,247.99
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- Low Gear Set
- For Use In Dana 20 Transfer Case
- Converts From 2.03 To 3.15 Low Range
- Complete Gear Set
- Includes Necessary Bearings And Gaskets
- California Residents: WARNING
From $1,247.99
Advance Adapters Low Range Switch
Advance Adapters Low Range SwitchFrom $48.99
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- This kit tells the computer system that the vehicle is in low ratio, disabling the ESP and enabling the locker option
- This Kit is for use on Vehicles with Atlas Transfer Case Production date of August 2014 and Later
- At Advance Adapters, they design, engineer , and manufacture unsurpassed Powertrain and 4-Wheel-Drive after market products
- California Residents: WARNING
From $48.99
A transfer case crawl box and low gear set is a replacement for the low range of gearing needed for rock crawling and related off-roading. 4WD carries TeraFlex, Trail Gear and Advance Adapters crawl boxes and low gear sets that offer proper ratios and various spline configurations. Sometimes you need to modify your transfer case or disassemble it to install these components on your 4x4. They are precision-engineered and affordable when you want to make the upgrade.
15 Products
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Trail Gear Suzuki Transfer Case 6.50 Gear Set - 105004-3-KIT
- Fitment: Direct Fit
- 85-95 Suzuki Samurai
- Low range gear kit 6.50 to 1 Ratio
- 20% high range reduction
- California Residents: WARNING
Qualifies for Free Shipping
$599.99
- Fitment: Direct Fit
- 85-95 Suzuki Samurai
- Low range gear kit 6.50 to 1 Ratio
- 20% high range reduction
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Qualifies for Free Shipping
Ready To Ship
Ships Free
TeraFlex 2WD Low Range Kit - 2204000
- Fitment: Direct Fit
- 97-06 Wrangler TJ/LJ
- NP231-J transfer case
- True low range while allowing the front axle to turn freely
- Eliminates binding when turning
- All internal
- California Residents: WARNING + View More Specs - View Less Specs
Lowest Price! Guaranteed!
Qualifies for Free Shipping
$288.99
- Fitment: Direct Fit
- 97-06 Wrangler TJ/LJ
- NP231-J transfer case
- True low range while allowing the front axle to turn freely
- Eliminates binding when turning
- All internal
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Lowest Price! Guaranteed!
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Out Of Stock
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Advance Adapters Atlas Control Module - 300377
- Fitment: Direct Fit
- 07-18 Wrangler JK, 2 & 4 Door
- Works with Atlas 2-speed transfer case
- Can be used on a 4-speed case but there is no provision to connect an additional low range switch in the planetary housing
- For cases built prior to August 2014
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Qualifies for Free Shipping
$331.99
- Fitment: Direct Fit
- 07-18 Wrangler JK, 2 & 4 Door
- Works with Atlas 2-speed transfer case
- Can be used on a 4-speed case but there is no provision to connect an additional low range switch in the planetary housing
- For cases built prior to August 2014
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Qualifies for Free Shipping
Ships Directly From Manufacturer
May take additional processing time.
Ships Free
TeraFlex Dana 18 withoutD Transfer Case Low Range Gear Set - 2111000
- Fitment: Direct Fit
- 66-79 Jeep CJ
- Dana 18
- Includes Intermediate Gear
- Front Output Gear
- Front Sliding Gear
- Bearing
- Shaft Kit
- Gasket Set
- For Use with Saturn and Warn Overdrives
- California Residents: WARNING + View More Specs - View Less Specs
Lowest Price! Guaranteed!
Qualifies for Free Shipping
$836.99
- Fitment: Direct Fit
- 66-79 Jeep CJ
- Dana 18
- Includes Intermediate Gear
- Front Output Gear
- Front Sliding Gear
- Bearing
- Shaft Kit
- Gasket Set
- For Use with Saturn and Warn Overdrives
- California Residents: WARNING + View More Specs - View Less Specs
Lowest Price! Guaranteed!
Qualifies for Free Shipping
Ships Directly From Manufacturer
May take additional processing time.
Ships Free
TeraFlex Model 18 Transfer Case Low Range Kit - 2111018
- Fitment: Direct Fit
- 66-71 CJ and J-Series trucks
- Model 18 transfer case
- Low-Range ratio to 3.15:1
- No driveshaft changes, or special shift linkages required
- Comes as a 4 gear set, and includes all necessary gaskets and seals
- Provides rock-crawling performance without affecting high range gears for daily drivers
- California Residents: WARNING + View More Specs - View Less Specs
Lowest Price! Guaranteed!
Qualifies for Free Shipping
$997.99
- Fitment: Direct Fit
- 66-71 CJ and J-Series trucks
- Model 18 transfer case
- Low-Range ratio to 3.15:1
- No driveshaft changes, or special shift linkages required
- Comes as a 4 gear set, and includes all necessary gaskets and seals
- Provides rock-crawling performance without affecting high range gears for daily drivers
- California Residents: WARNING + View More Specs - View Less Specs
Lowest Price! Guaranteed!
Qualifies for Free Shipping
Ships Directly From Manufacturer
May take additional processing time.
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TeraFlex Scout Dana 300 Transfer Case Low Range Gear Set - 2103000
- Fitment: Direct Fit
- Dana 300 transfer case
- Includes Replacement Gears
- Replacement Shift Rail
- Gasket
- Seal Kit
- Shims
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Lowest Price! Guaranteed!
Qualifies for Free Shipping
$1,016.99
- Fitment: Direct Fit
- Dana 300 transfer case
- Includes Replacement Gears
- Replacement Shift Rail
- Gasket
- Seal Kit
- Shims
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Lowest Price! Guaranteed!
Qualifies for Free Shipping
Ships Directly From Manufacturer
May take additional processing time.
Ships Free
TeraFlex Model 20 Transfer Case Low Range Kit - 2112020
- Fitment: Direct Fit
- 63-79 Jeeps with Dana 20 transfer case and manual transmission
- Converts the stock 2.03:1 to 3.15:1 for improved rock crawling performance
- 6-spline input gear
- No driveshaft changes, or special shift linkages required
- Comes complete as a 5 gear set, and includes all necessary gaskets and seals
- California Residents: WARNING + View More Specs - View Less Specs
Lowest Price! Guaranteed!
Qualifies for Free Shipping
$1,140.99
- Fitment: Direct Fit
- 63-79 Jeeps with Dana 20 transfer case and manual transmission
- Converts the stock 2.03:1 to 3.15:1 for improved rock crawling performance
- 6-spline input gear
- No driveshaft changes, or special shift linkages required
- Comes complete as a 5 gear set, and includes all necessary gaskets and seals
- California Residents: WARNING + View More Specs - View Less Specs
Lowest Price! Guaranteed!
Qualifies for Free Shipping
Out Of Stock
Order now. Get it first.
Ships Free
TeraFlex 2WD Low Range Kit - 2246900
- Fitment: Direct Fit
- 03-06 Wrangler TJ/LJ
- Fits Rubicon models only
- NP241OR transfer case
- Increase your standard low range shift pattern to include a rear 2WD low range option
- Completely internal modification and does not require any other modifications to the transfer case housing or components
- The new shift pattern is: 2H > 4H > N > 2L > 4L
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Lowest Price! Guaranteed!
Qualifies for Free Shipping
$301.99
- Fitment: Direct Fit
- 03-06 Wrangler TJ/LJ
- Fits Rubicon models only
- NP241OR transfer case
- Increase your standard low range shift pattern to include a rear 2WD low range option
- Completely internal modification and does not require any other modifications to the transfer case housing or components
- The new shift pattern is: 2H > 4H > N > 2L > 4L
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Lowest Price! Guaranteed!
Qualifies for Free Shipping
Ships Directly From Manufacturer
May take additional processing time.
Ships Free
TeraFlex 241-OR 2Low Kit - 2266900
- Fitment: Direct Fit
- 07-18 Wrangler JK, 2 & 4 Door
- 241-OR transfer cases
- Increases trail turning ability
- No housing or component modifications
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Lowest Price! Guaranteed!
Qualifies for Free Shipping
$290.99
- Fitment: Direct Fit
- 07-18 Wrangler JK, 2 & 4 Door
- 241-OR transfer cases
- Increases trail turning ability
- No housing or component modifications
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Lowest Price! Guaranteed!
Qualifies for Free Shipping
Ships Directly From Manufacturer
May take additional processing time.
Ships Free
Advance Adapters Rubicrawler Crawler Box - RUBI-JKA
- Fitment: Direct Fit
- 07-11 Wrangler JK, 2 & 4 Door
- 03-06 Wrangler TJ
- Automatic transmission only
- Installs between transmission and transfer case
- Provides additional 2.72 low range
- Includes twin stick Shifter
- Requires use of ADV42R800 computer module
- Does not include shifter knobs - part number ADV42R650
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Qualifies for Free Shipping
$2,073.99
- Fitment: Direct Fit
- 07-11 Wrangler JK, 2 & 4 Door
- 03-06 Wrangler TJ
- Automatic transmission only
- Installs between transmission and transfer case
- Provides additional 2.72 low range
- Includes twin stick Shifter
- Requires use of ADV42R800 computer module
- Does not include shifter knobs - part number ADV42R650
- California Residents: WARNING + View More Specs - View Less Specs
Qualifies for Free Shipping
Ships Directly From Manufacturer
May take additional processing time.
Ships Free
Advance Adapters Low Range Switch - 300378A
- Fitment: Direct Fit
- 07-11 Wrangler JK, 2 & 4 Door
- 03-06 Wrangler TJ
- Rubicon models only
- NP271 transfer case
- Allows you to use low range in 2WD
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Qualifies for Free Shipping on Orders Over $99
$48.99
- Fitment: Direct Fit
- 07-11 Wrangler JK, 2 & 4 Door
- 03-06 Wrangler TJ
- Rubicon models only
- NP271 transfer case
- Allows you to use low range in 2WD
- California Residents: WARNING + View More Specs - View Less Specs
Qualifies for Free Shipping on Orders Over $99
Ships Directly From Manufacturer
May take additional processing time.
Ships Free*
TeraFlex Dana 20 Transfer Case Low Range Gear Set - 2112800
- Fitment: Direct Fit
- 66-76 CJ
- Dana 20
- Auto
- Includes Replacement Gears
- Bearing
- Shaft Kit
- Gasket Set
- For use with factory Turbo 400 transmission
- California Residents: WARNING + View More Specs - View Less Specs
Lowest Price! Guaranteed!
Qualifies for Free Shipping
$1,134.99
- Fitment: Direct Fit
- 66-76 CJ
- Dana 20
- Auto
- Includes Replacement Gears
- Bearing
- Shaft Kit
- Gasket Set
- For use with factory Turbo 400 transmission
- California Residents: WARNING + View More Specs - View Less Specs
Lowest Price! Guaranteed!
Qualifies for Free Shipping
Ships Directly From Manufacturer
May take additional processing time.
Ships Free
Advance Adapters Atlas Control Module - 300377A
- Fitment: Direct Fit
- 07-18 Wrangler JK, 2 & 4 Door
- Works with Atlas 2-speed transfer case
- Can be used on a 4-speed case but there is no provision to connect an additional low range switch in the planetary housing
- For cases built after August 2014
- California Residents: WARNING + View More Specs - View Less Specs
Qualifies for Free Shipping
$324.99
- Fitment: Direct Fit
- 07-18 Wrangler JK, 2 & 4 Door
- Works with Atlas 2-speed transfer case
- Can be used on a 4-speed case but there is no provision to connect an additional low range switch in the planetary housing
- For cases built after August 2014
- California Residents: WARNING + View More Specs - View Less Specs
Qualifies for Free Shipping
Ships Directly From Manufacturer
May take additional processing time.
Ships Free
Advance Adapters Dana 20 Transfer Case Low Gear Sets - 420315
- Fitment: Universal Fit
- Advance Adapters Transfer Case Gear Sets
- For Use In Dana 20 Transfer Case
- Converts From 2.03 To 3.15 Low Range
- Complete Gear Set
- Includes Necessary Bearings And Gaskets
- California Residents: WARNING + View More Specs - View Less Specs
Qualifies for Free Shipping
$1,247.99
- Fitment: Universal Fit
- Advance Adapters Transfer Case Gear Sets
- For Use In Dana 20 Transfer Case
- Converts From 2.03 To 3.15 Low Range
- Complete Gear Set
- Includes Necessary Bearings And Gaskets
- California Residents: WARNING + View More Specs - View Less Specs
Qualifies for Free Shipping
Ships Directly From Manufacturer
May take additional processing time.
Ships Free
Advance Adapters 42RLE Rubicrawler Crawler Box - RUBI-JKAD
- Fitment: Universal Fit
- Installs Between Transmission And Transfer Case
- Provides Additional 2.72 Low Range
- Includes Twin Stick Shifter
- For Use In Jeep Jk Model Only
- Requires Use Of ADV42R800 Computer Module
- Does Not Include Shifter Knobs
- For Use With 42RLE Automatic Transmission And NV241 Transfer Case
- California Residents: WARNING + View More Specs - View Less Specs
Qualifies for Free Shipping
$2,332.99
- Fitment: Universal Fit
- Installs Between Transmission And Transfer Case
- Provides Additional 2.72 Low Range
- Includes Twin Stick Shifter
- For Use In Jeep Jk Model Only
- Requires Use Of ADV42R800 Computer Module
- Does Not Include Shifter Knobs
- For Use With 42RLE Automatic Transmission And NV241 Transfer Case
- California Residents: WARNING + View More Specs - View Less Specs
Qualifies for Free Shipping
Ships Directly From Manufacturer
May take additional processing time.
Ships Free