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Jeep, Scout, & Bronco: Transfer Case Component Guide

Category:  Product Highlights

TeraFlex

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JK Wrangler & JKU Wrangler Unlimited

TJ Wrangler & LJ Wrangler Unlimited

YJ Wrangler | Jeep CJ | XJ Cherokee

International Scout | Ford Bronco

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Short Shaft Kits | Low-Range Gear Kits

Rzeppa Replacement Kits | Yoke U-Bolt Conversion Kits

Transfer Case Lowering Kits | Accessories

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Not only do we make the best lift kits and suspension systems on the market, but we also offer accessories for your Jeep Wrangler and/or Jeep Wrangler Unlimited, Jeep CJ and other models. Here is a look at our transfer case upgrade kits and accessories for the JK Wrangler and JKU Wrangler Unlimited, TJ Wrangler and LJ Wrangler Unlimited, YJ Wrangler, and Jeep CJ models as well as the International Scout and Ford Bronco with Dana transfer cases. 

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Short Shaft Kits

These kits must be used with a CV style (double Cardan) driveshaft. Fits NP231-J transfer cases only.

TJ/LJ NP231 Extreme Short Shaft Kit

The TJ/LJ NP231 Extreme Short Shaft Kit is what short-wheelbase Wrangler owners have been dreaming about for decades. Not only does the Extreme Short Shaft Kit improve on strength, but it also increases driveshaft length by up to 7” over a stock application. This kit is also more than 3” shorter than a standard Slip Yoke Eliminator Kit and 1.5” shorter than an ATLAS II. 

Speedometer readings are transferred through a tone ring and electronic sensor. Requires a converter box to calibrate the speedometer. Earlier NP231 applications with a mechanical speedometer cable require updating to an electronic speedometer. 

TJ & LJ UNLIMITED

NP231 EXTREME SHORT SHAFT KIT

TJ/LJ NP231 Extreme Short Shaft 

EXTREME SHORT SHAFT KIT REPLACEMENT PARTS

Electronic Transfer Case Speed Sensor 

Rear Output Yoke  

Output Housing Seal  

Output Yoke Flanged Nut

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TJ/LJ | YJ | XJ

NP231 Short Shaft Kit

This TJ/LJ | YJ | XJ NP231 Short Shaft Kit increases the rear driveshaft length by 4” eliminating the need for a Transfer Case Lowering Kit in most cases. Also includes a larger output bearing and rear housing.

TJ/LJ | YJ | XJ 

NP231 SHORT SHAFT KIT

TJ/LJ | YJ | XJ NP231 Short Shaft Kit

XJ NP231 Short Shaft Kit w/ Vacuum Disconnect 

SHORT SHAFT KIT REPLACEMENT PARTS

Rear Output Yoke

Output Housing Seal  

Output Yoke Flanged Nut

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1981-1986 Dana 30 Low300 Heavy Duty Output Shaft Kit

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Replace your Dana 300 transfer case’s stock output shaft with the TeraFlex Low30 Heavy Duty Output Shaft Kit. The thicker and stronger shaft is better suited for high-torque and high-stress situations compared to the stock unit. Combine the Low30 Heavy Duty Output Shaft with one of our Low300 Low-Range Gear Set Kits for additional strength. 

1981-86 DANA 30 

HEAVY DUTY OUTPUT SHAFT KIT

1981-86 Dana 30 Low300 Heavy Duty Output Shaft Kit

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2Low 2wd Low-Range Shift Sector Kits

The TeraFlex 2Low 2WD Low-Range Shift Sector Kit adds a rear 2WD (two-wheel-drive) low-range option to the Wrangler and Wrangler Unlimited models' transfer case’s standard low-range shift pattern. 

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This kit enhances trail turning ability by allowing tighter turns on narrow switchbacks and eliminates most front-end bind encountered while turning with 4WD (four-wheel-drive) engaged. This internal modification does not require any external upgrades.

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The JK/JKU Rubicon 241OR 2Low 2WD Low-Range Shift Sector Kit uses all factory low-range functions such as ESP disabling and electronic sway bar disconnect as well as locker engagement and disengagement. The 4WD dash light will illuminate while in the 2Low position to indicate that the selector is in a low-range gear. 

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New Shift Pattern: 

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JK/JKU Rubicon | TJ/LJ Rubicon (241OR): 2H > 4H > N > 2L > 4L

TJ/LJ NP231-J: 2H > 4H > N > 4L > 2L

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JK/JKU | TJ/LJ 

2LOW 2WD LOW-RANGE SHIFT SECTOR KIT

JK/JKU Rubicon 241OR 2Low 2WD Low-Range Shift Sector Kit

TJ/LJ Rubicon 241OR 2Low 2WD Low-Range Shift Sector Kit

TJ/LJ NP231-J 2Low 2WD Low-Range Shift Sector Kit

        

Low-Range Gear Set Kits

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Convert your Dana transfer case’s stock gear ratio to a true low-range gear ratio with one of these TeraFlex Low-Range Gear Set Kits. The strength and durability of the stock Dana transfer case combined with an increase in crawl ratio improve trail and rock crawling performance without adversely affecting high-range gears for daily drivers or the trip to and from the backcountry.

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JEEP | SCOUT | BRONCO

LOW-RANGE GEAR SET KITS

Jeep CJ: Low300 (2.6:1 to 4.0:1) - Manual

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Scout: Low300 (2.6:1 to 4.0:1) - Manual

Scout: Low300 (2.6:1 to 4.0:1) - Auto

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1963-79 Jeep | 1972-79 Scout: Low20 (2.03:1 to 3.15:1) - Manual

1963-79 Jeep: Low20 (2.03:1 to 3.15:1) - Turbo 400

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Bronco: Low20 (2.46:1 to 3.15:1) - Manual

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1966-71 Jeep: Low18 (2.43:1 to 3.15:1) - Manual

1966-71 Jeep: Low18 (2.43:1 to 3.15:1) w/ Overdrive

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JK/JKU Rzeppa High-Angle Factory Replacement CV Joint Kit

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The TeraFlex JK/JKU Rzeppa High-Angle Factory Replacement CV Joint Kit replaces worn or damaged factory Rzeppa CV joint and driveshaft without resorting to an expensive aftermarket U-joint upgrade. The high-angle CV housing reduces boot failure common with 3” or more lift heights.

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The included low-friction grease is engineered specifically for the high RPM needs of the JK/JKU Rzeppa CV joint and features high-viscosity surface bonding characteristics necessary to properly adhere the grease to all moving surfaces.

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JK 2-DOOR & JKU 4-DOOR

RZEPPA HIGH-ANGLE FACTORY REPLACEMENT CV JOINT KIT

JK/JKU Rzeppa CV Joint Kit

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JK/JKU Yoke U-Bolt Conversion Kit

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The TeraFlex JK/JKU Yoke U-Bolt Conversion Kit replaces the OEM Rzeppa CV flange with a standard 1310 CV Cardan joint style yoke and U-bolt style connector to run a CV style (double Cardan) driveshaft. U-joints are easier to change compared to CV joints after trail carnage.

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JK 2-DOOR & JKU 4-DOOR 

YOKE U-BOLT CONVERSION KIT

JK/JKU Yoke U-Bolt Conversion Kit - All 4

JK/JKU Front Axle Conversion Kit - Each

JK/JKU Rear Axle Conversion Kit - Each

JK/JKU Transfer Case Output Conversion Kit (Requires 2) - Each

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Transfer Case Lowering Kits

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These TeraFlex Transfer Case Lowering Spacer Kits lower the transfer case to reduce driveshaft vibration caused by a ride height 2” or more above stock – especially on Jeep models without either a slip yoke eliminator kit or adjustable control arms.

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TJ/LJ | TJ | XJ

TRANSFER CASE SPACER LOWERING KIT

2003-06 TJ/LJ: 1” Lowering Kit

1997-02 TJ: 1” Lowering Kit

1997-02 TJ: 0.5” Lowering Kit

XJ Cherokee: 0.5” Lowering Kit

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Accessories

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Dana 300 Rebuild Kit

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This Dana 300 Rebuild Kit provides all the components necessary to completely overall the Dana 300 transfer case. Includes intermediate shaft, shift fork friction pad set, gaskets, seals, bearings, and bearing adjustment shims. 

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DANA

REBUILD KIT

Dana 300 Rebuild Kit

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TJ/LJ Transfer Case Shift Linkage Adapter Kit

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The TeraFlex TJ/LJ Transfer Case Shift Link Adapter makes shifting your 231 Transfer Case into all low range sectors simple. This kit fixes the issues of the trouble-prone and unreliable stock linkage caused by independent body and drivetrain movement.

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The new bracket bolts to the transmission and transfer case to eliminate any negative movement. The heavy-duty Adapter provides problem-free shifting even under extreme conditions. Also includes an adjustable torque shaft rod for fine tuning the linkage to the transfer case lever.

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TJ & LJ UNLIMITED 

TRANSFER CASE SHIFT LINKAGE ADAPTER KIT

TJ/LJ TShift Linkage Adapter Kit

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TJ/LJ Adjustable Transfer Case Torque Shaft Rod

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Use this TJ/LJ Adjustable Transfer Case Torque Shaft Rod with the TJ/LJ Transfer Case Shift Linkage Adapter Kit when a longer torque shaft is required to mount between the linkage adapter kit and the transfer case lever.

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TJ & LJ UNLIMITED 

ADJUSTABLE TRANSFER CASE TORQUE SHAFT ROD 

TJ/LJ Adjustable Torque Shaft Rod

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TJ/LJ Shift Linkage Plate Kit

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The TeraFlex TJ/LJ Shift Linkage Plate may be necessary to properly locate the transfer case linkage on TJ Wrangler and/or LJ Wrangler Unlimited models with either a transfer case lowering kit or body lift kit.

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TJ & LJ UNLIMITED 

SHIFT LINKAGE PLATE

2003-06 TJ/LJ Shift Linkage Plate Kit

1997-02 TJ Shift Linkage Plate Kit

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TJ/LJ Adjustable Transfer Case Shift Linkage Rod (5.5”)

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Use this TJ/LJ 5.5” Adjustable Transfer Case Shift Linkage Rod with the TJ/LJ Transfer Case Shift Linkage Adapter Kit when a longer shift linkage is required. This linkage is 5.5” long and provides maximum linkage adjustment to fine tune the linkage throw length between the linkage adapter kit and the transfer case shift handle assembly.

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TJ & LJ UNLIMITED 

ADJUSTABLE TRANSFER CASE SHIFT LINKAGE ROD 

TJ/LJ Adjustable Shift Linkage Rod (5.5”)

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Check out all of our TeraFlex Suspensions Lifts, Off-Road Performance Parts, and Jeep Accessories HERE!

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- Jason Udy 

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