LAND ROVER DEFENDER LT230 TRANSFER CASE REINFORCEMENT KIT — ULTIMATE
DEFENDER ULTIMATE LT230 TRANSFER CASE REINFORCEMENT KIT
Designed and Manufactured in the United Kingdom
The ROHMY Defender Ultimate LT230 Transfer Case Reinforcement Kit is our most comprehensive upgrade package for the legendary LT230 transfer case.
Developed around a selection of premium British-engineered components, this complete reinforcement system has been carefully configured by ROHMY to improve drivetrain strength, reliability and traction while maintaining the original characteristics that have made the LT230 one of Land Rover’s most respected transfer cases.
Whether your Defender is equipped with the original manual transmission, the ROHMY ZF 8-Speed Automatic Conversion, or the ROHMY HEMI 5.7L V8 Conversion, this upgrade delivers a noticeably smoother, stronger and more confidence-inspiring driving experience.
A Complete Reinforcement System
Unlike conventional upgrades that replace only a single component, the ROHMY Ultimate LT230 Transfer Case Reinforcement Kit combines every essential part required to correctly upgrade and reinforce the LT230 centre differential assembly.
Each component has been selected to work together as one complete system, ensuring maximum durability, installation accuracy and long-term reliability.
Kit Contents
Every kit includes:
- Premium LT230 Automatic Torque Biasing (ATB) Centre Differential
- Professional LT230 ATB Installation Kit
- Dedicated LT230 Centre Differential Nut Installation Tool
The fitting kit includes all critical installation components including premium Timken bearings, collapsible spacer, intermediate pin nut, centre differential retaining nut, shims, O-rings and assembly sealant, providing everything required for a professional installation.
Why Upgrade?
The factory LT230 centre differential is designed to accommodate the small speed differences between the front and rear axles during normal driving.
However, under demanding off-road conditions or when one axle rapidly loses traction, excessive internal differential speed can place significant stress on the original centre differential components.
The integrated ATB centre differential continuously transfers torque towards the axle with the greatest available traction, helping reduce internal shock loading while maintaining smooth and predictable vehicle behaviour across changing terrain.
Unlike electronic systems, the ATB operates entirely mechanically without sensors, wiring or driver input.
The original manual centre differential lock remains fully functional whenever maximum traction is required.
Performance Benefits
- Automatic torque biasing without electronic intervention
- Improved traction on loose, wet and uneven terrain
- Reduced drivetrain backlash and transmission shock
- Smoother power delivery under acceleration
- Enhanced vehicle stability during cornering
- Improved towing performance and heavy-load control
- Reduced stress on the LT230 centre differential assembly
- Retains full factory centre differential lock functionality
Engineered for Every Defender
Compatible with:
- Defender Manual Transmission
- ROHMY ZF 8-Speed Automatic Conversion
- ROHMY HEMI 5.7L V8 Conversion
- LT230 Transfer Cases (vehicle dependent)
Whether fitted to a standard restoration, an expedition vehicle or a high-performance Defender build, the Ultimate Reinforcement Kit provides a significant improvement in drivetrain refinement and durability.
Complete Professional Installation
Correct installation of the LT230 centre differential requires dedicated tooling, precise bearing preload and proper differential adjustment.
Unlike purchasing individual components separately, this kit includes the dedicated installation tool together with the complete fitting kit, allowing professional assembly exactly as intended while reducing installation time and eliminating the need to source additional components.
Built for Long-Term Reliability
Every component within the ROHMY Defender Ultimate LT230 Transfer Case Reinforcement Kit has been selected to improve the durability of one of the most heavily loaded assemblies in the Defender drivetrain.
The combination of premium internal components, correct installation hardware and dedicated tooling provides a comprehensive upgrade designed for long service life, whether used in daily driving, long-distance touring or demanding off-road environments.
The ROHMY Recommendation
We strongly recommend this upgrade whenever the LT230 transfer case is removed or rebuilt.
It is the ideal companion to the ROHMY ZF 8-Speed Automatic Conversion, ROHMY HEMI 5.7L V8 Conversion and any professional LT230 overhaul, allowing the transfer case to be upgraded while already disassembled.
The result is a quieter, stronger and more refined drivetrain, engineered to withstand increased torque while delivering greater confidence on every journey.
Vehicle Vin Number required for comparability check.
⚠️Please view our TERMS OF CONDITION and DESIGN PROTECTION before purchase.
ROHMY
Shipping & Returns
Returns
ROHMY does not accept unauthorized returns. In the event that an item must be returned, the customer must first contact us and obtain a Return Authorization Number. This number must be clearly marked on the outside of your return package.
Contact sales@rohmy.com.au before initiating any return. Returns sent without authorization will not be processed.
- Items must be returned in original packaging, unused and uninstalled, and received by ROHMY within 14 days of your original receipt.
- Include your original invoice — with date of sale — inside the return package.
- All eligible returns are subject to a 20% restocking fee, except where the return resulted from our error.
- Special order and made-to-order items cannot be returned unless a manufacturer's defect is present.
- No credit or exchange is available for items that have been installed, used, or deformed. Any damage must be reported to ROHMY prior to any installation.
- Return shipping costs are the buyer's responsibility unless the return was caused by our error.
Domestic Shipping
All items are shipped via Australian local express carriers unless prohibited by size or weight, in which case a motor freight carrier will be used. Expedited shipping may be available at additional cost upon request.
International Orders
Please check out your order and select "Local Pickup" at checkout if you would like to ship outside Australia. Email your order number to sales@rohmy.com.au and our sales team will reply with a purchase link for the correct international shipping cost. International orders may be dispatched via DHL at our discretion.
Please note that duties and taxes applicable on importation, as well as any brokerage fees, are the full responsibility of the customer.
Transit Damage
ROHMY and its suppliers deliver merchandise to carriers properly protected and packaged. Damage incurred in transit is the sole responsibility of the carrier. If a package appears damaged upon arrival, note the specific condition on the receipt from your carrier before signing. If damage is discovered after opening the package, notify the carrier immediately. ROHMY will assist you in your claim to a practical degree.
Pre-Orders
All pre-orders are made to order. ROHMY does not offer cancellations on pre-order items