TRANSMISSION 518

The stock transmission is designed to handle the output of the stock engine, but not much more. Increase the durability of your drivetrain with a BD transmission. All transmissions come with BD's heavy duty transmission pan and most packages come bundled with our auxiliary transmission filter kit for added protection!

Additional Information

Transmission Kit; Incl. Heavy Duty Pan/Auxiliary Fluid Filter;

Part Type

Automatic Transmission Assembly

Product Overview

Your transmission was only designed to handle the torque and horsepower the stock engine delivers, and in the case of some Dodge models, even the stock torque can present a challenge. So when you start adding power modules, turbo upgrades and other bolt-ons, it's only a matter of time before the transmission wears out and eventually fails.

BD transmissions are built specifically to handle the high torque loads of diesel engines at our state-of-the-art transmission facility. We re-program the valve body for higher line pressure, and add heavy-duty clutches with up to 25% more material than stock. The stock thrust washers, which disintegrate and leave metal filings in your transmission, are replaced with roller Torrington bearings. We install new input shafts and hubs to eliminate possible metal fatigue or high torque load damage from prior use. We upgrade early 47RE transmissions with more rugged 48RE components. We recommend billet steel input and output shafts for applications with extra big tires and modified power levels. .

Inside each transmission is a NEW DESIGN valve body that achieves up to 80% higher clutch apply pressures over the stock unit and up to 50% over the competitors with the pressure increase starting at much lower engine rpm's and at lighter throttle pedal position movement. Light throttle shift firmness is also maintained at these higher apply pressures and no shuttle shifting problems.

Our transmission packages also include a BD rigid aluminum heavy duty transmission pans' which adds extra oil capacity and reduces case flex, plus, includes a BD auxiliary full flow filter kit for extra protection.

Each transmission is dyno-tested to make sure it functions properly in all gears, then the pan is dropped and everything inspected and adjusted before it is shipped to you in one of our containers.

Other options to consider when replacing your transmission are to mate the BD transmission with one of our Torque Convertors â€" we have 2 to choose from. Our stamp forged Flex Plates that meet SFI 29.3 for race track applications for added performance and strength behind high out engines. Call for detailsâ€"we'll be happy to answer your transmission questions.

These additional application notes are supplied by the manufacturer and collated from multiple year ranges. Not all of these notes may apply to every year or every variant. Please contact a StreetFX agent for clarification if required.

• 36 Month/150000 Mile Limited Warranty
• 47RE transmissions upgraded with more rugged 48RE components
• Added heavy-duty clutches with up to 25% more material than stock
• All new bushings
• BD auxiliary full flow filter kit for extra protection
• BD rigid aluminum heavy duty transmission pan
• Billet band strut & anchor
• Billet dual ring accumulator piston
• Cooler line case saver in every transmission
• Drilled intermediate shaft for increased lube
• Each Transmission Is Dyno Tested
• Extra clutches and stronger internals
• Fully rollerized geartrain
• Handles up to 300% more power and torque than the stock transmission
• Has Stronger Internals
• High temp/energy Raybestos band
• Increase the durability of your drivetrain
• Instant Notification If Water Is In Your Fuel
• Light throttle shift firmness is also maintained
• Machined direct clutch (front) piston
• Machined forward (rear) beveled pressure plate
• Machined overdrive brake (front & rear) pressure plate
• Modified manual valve for lube in all positions
• New Design Valve Body
• New input shafts and hub
• No Race Abuse Covered
• No shuttle shifting problems
• Not warranted for Race or Sled Pull use
• Pan adds 1qt extra oil capacity
• Pan heat-dissipating fins keep temperature down
• Pan magnetic drain plug
• Pan reduces case flex
• Pan reduces internal oil leakage
• Pressure increase starts at much lower engine rpm's and at lighter throttle pedal position movement
• Revised oil circuits
• Stock thrust washers replaced with roller Torrington bearings saves governor solenoids and reduces friction
• Up to 80% higher clutch apply pressures over the stock unit
• Upgraded governor pressure transducer (47RE/48RE)
• Upgraded governor solenoid - Twice the burst pressure than stock

Images are supplied by the manufacturer and may be generic. While all efforts are made to provide accurate pictures, there may be differences in the actual product, such as colour, quantity, version, or included components. Please carefully review the description and specifications for details on inclusions or any variations. Some items may be sold individually or in sets, and images may occasionally depict additional products or quantities not included in your purchase. For assistance or clarification, please contact customer support.

Product Details

Product Downloads

#	Document Type	Download
1.	Installation Instructions
2.	Catalog

Installation guides, warranty details, and other supporting documents are provided by the supplier. In some cases, these files may originate from regions outside your locale, meaning instructions, warranty procedures, and images may not fully align with your specific vehicle or region (e.g., LHD vs. RHD differences, return policies, etc.). If you need clarification, please contact a StreetFX support agent.

Reference Information