Product Description
The BD DIESEL 1031350 Lockout Overdrive Disable controller gives the driver manual control of the overdrive function on Dodge Ram trucks equipped with the 48RE automatic transmission and the 5.9L Cummins engine. On the 2005 model year, Dodge removed the factory ability to lock out 4th gear, which can negatively affect towing performance and exhaust braking efficiency. This BD Diesel LockOut unit restores that control by allowing the driver to disable overdrive 4th gear when needed, improving throttle response, maintaining RPM under load, and aiding in exhaust braking or hill climbs.
The LockOut module connects to the existing transmission control wiring and Tow/Haul switch circuit, providing a simple and clean integration with factory controls. Designed for durability and ease of installation, this kit helps reduce unwanted upshifts that can lower RPMs and reduce pulling power when towing or climbing long grades.
Fitment
- 2005 Dodge Ram 2500 – 5.9L Cummins – 48RE Automatic Transmission
- 2005 Dodge Ram 3500 – 5.9L Cummins – 48RE Automatic Transmission
Fitment Note: This LockOut overdrive controller is designed exclusively for the 48RE automatic transmission used on 2005 Dodge Ram 2500/3500 with the 5.9L Cummins engine.
Cross-Reference / Compatible BD DIESEL Products
- BD DIESEL 1030362 68RFE PROTECT68 PRESSURE CONTROL KIT
- BD DIESEL 1061525 DEEP SUMP TRANS PAN – TRANSMISSION UPGRADE
FAQ
What does this overdrive disable controller do?
It enables you to manually disable the 4th gear (overdrive) in the 48RE transmission on 2005 Dodge Rams, restoring control that was removed from the factory for improved towing and exhaust brake performance.
Is installation difficult?
Installation uses the existing Tow/Haul switch wiring harness and can typically be completed with basic hand tools in about an hour.
Will this help when towing heavy loads?
Yes. By disabling overdrive, your engine stays in a lower gear and higher RPM range, which improves power delivery, reduces lugging, and enhances exhaust brake performance on long grades.
Specifications for BD DIESEL PRODUCTS 1031350
| Specification | Details |
|---|---|
| Brand | BD Diesel Performance |
| Part Number | 1031350 |
| UPC | 990011401081 |
| GTIN | 990011401081 |
| Shipping Info | Ships as a complete LockOut Overdrive Disable controller |
| Prop 65 | This product may be subject to Prop 65. See www.P65Warnings.ca.gov |
