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DD5: Direct Drive 5-Speed Builder's Kit

Our BAKER DD5 is not just a replacement for the stock 5-speed. Whether you’re going down the drag strip or you’re cruising down the road, the torque capacity, long-term durability, and shift quality are greatly improved over stock. Will handle up to 200 H.P. no problem.

  • One-piece countershaft with 5th gear
  • Larger 52mm door bearings
  • Billet 6061-T6 door for strength
  • Hard chrome plated shift forks for wear resistance
  • Roller detent shift system with redundant neutral vastly improves neutral finding
  • 5-Year limited warranty
  • Handles over 200 ft/lbs of torque (more than stock)
  • Easier to find neutral
  • Smoother shifting
  • Longer lasting components
    • 1991-2005 Dyna
    • 1987-2006 FLT-FLH & Softail
    • 1987-1994 & 1999 FXR


      Bearing Door Type: All DD5 bearing doors have the same outer profile as a stock 5-speed, so exhaust brackets, torque arms, etc. fit like stock. The DD5 door comes with or without an ear. The ear door is for exhaust bracket mounting and the non-ear door fits 1993-2006 FL applications.

      Mainshaft: The 1991 style splined mainshaft comes standard on the DD5 Builder’s Kit. A 1987-1989.5 tapered mainshaft is available upon request.

      1st Gear Ratio: The 2.94 1st gear ratio is a good all-around ratio. The optional 3.24 1st gear is recommended for heavy GVW applications. 

      DD5 Builder’s Kit Layout

      Bearing Door
      All DD5 bearing doors have the same outer profile as a stock 5-speed, so exhaust brackets, torque arms, etc. fit like stock. The DD5 door comes with or without an ear. The ear door is for exhaust bracket mounting and the non-ear door fits 1993-2006 FL applications. Note the images below. The DD5 door bearings are larger providing 25% more dynamic load capacity than stock bearings used through 1998.



      Redundant Neutral System

      Shift System
      Our 5 Speed shift system with roller detent guarantees smooth shifts every time and our redundant neutral ensures that finding neutral is an easy chore. We mount a plunger detent on the left side pillow block and cut a plunger track into the shift drum itself.  The plunger follows this track during operation (shifting) and when shifting into neutral pops into a pocket. This system lets you feel that you’re shifting into neutral. No more guessing.  Shift drum features more aggressive timing on the fork groove profiles and is case hardened to 58 Rockwell for wear resistance and crisp shifts. We built our reputation on smooth-shifting 6-speed transmissions; our 5-speed drum designs benefit from the engineering lessons learned. 

      FL Case Differentiations
      To see an illustrated example of the differences between FL cases by year, please open the PDF here.

      All DD5 gearsets come with a 1-piece countershaft. Eliminates the well-known Achilles heel of the stock 5-speed under high horsepower and/or heavy GVW applications. That is, the 5th gear (on the countershaft) cracks radially and splits in half with catastrophic results. Our one-piece design is good to 200 H.P. All gears are made out of 8620 steel, hobbed before heat treat, and then precision ground with diamond coated tooling after heat treat (58-62 Rockwell ‘C’). These extra steps ensure a quiet gear pair with minimal backlash.


      The DD5 comes with a 3.24 or 2.94 1st gear ratio.

      Countershaft Comparison

      DD5 Gearset Layout


      Billet Shift Forks

      Shift Forks
      Our billet shift forks are 3x thicker than stock and hard chrome plated for wear resistance

       Available No Cost Options

      • Standard Shift Drum (1-N-2-3-4-5)
      • N1 Shift Drum (N-1-2-3-4-5)
      • Reverse Pattern Shift Drum (5-4-3-2-N-1)
      • Reverse Pattern Shift Kill Drum (5-4-3-2-N-1); Wiring your neutral switch to the coil provides a clutch free way of shifting your motorcycle.

       The DD5 Ratios

      Standard Ratios
      1st Gear 2.94 / Optional 3.24
      2nd Gear 2.21
      3rd Gear 1.60
      4th Gear 1.23
      5th Gear 1.00


        Recalibration Box PN 95E-56B

        Special Note

        • Speedo recalibration unit is required for electric speed sensor applications; PN 95E-56B.

        Recommended Fluid / Level 

        Picking the right transmission fluid ensures the life and durability of your transmission, that’s why BAKER recommends a fully synthetic GL-5 rated gear weight oil of 75W-140. If a GL-5 rated gear lube is not available, these commonly carried viscosities (weights) will work 75W-90, 75W-140, and 85W-140. BAKER does not recommend the use of Syn3 (20W-50). For Bert’s  article on ‘Oil & Spiders’  Click Here

        • BAKER DD5 Fluid Capacity Dry: 22-24fl-oz
        • BAKER DD5 Fluid Capacity Wet: 18-22fl-oz

        Learn more about Spectro Performance Oils here:


        Please see your Factory Service Manual for installing the BAKER DD5 Builder’s Kit


        Standard Gear Case Finish Examples (Not applicable to all products)



        Wrinkle Black

        These example finishes are intended to show the exterior treatments of cases, top covers and doors.


        BAKER Drivetrain reserves the right to change prices, terms or policies at any time without notice. Orders can be pre-paid using Visa, MasterCard, American Express, Discover or PayPal. All orders not pre-paid will be sent C.O.D. certified check or money order only unless pre-approved for company check acceptance. Any orders from outside the USA must be pre-paid in US funds via wire transfer; a $30 transfer fee will apply. Prices shown are F.O.B. Haslett, MI.


        BAKER™ transmission assemblies and transmission builder 's kits, are guaranteed to the original purchaser to be free of manufacturing defects in materials and workmanship for a period of 5 years from the date of purchase or up to 50,000 miles, whichever occurs first. All other BAKER products are guaranteed to the original purchaser to be free of manufacturing defects in materials and workmanship for a period of 2 years from the date of purchase or up to 24,000 miles, whichever occurs first, except for the following; Warranty does not cover clutch plate wear, throw out bearing failures or mainshaft breakage due to improper clutch nut installation.Electrical components carry a 30-day warranty; cosmetic finishes (chrome plating, hard anodizing, powder coating) are covered for 60 days. Certain promotional products may carry a shorter warranty as specified at the time of purchase. If the product is found by BAKER to be defective, such products will, at the option of BAKER, be replaced or repaired at cost to BAKER.In the event warranty service is required, the original purchaser must call or write BAKER immediately with a description of the problem. If it is deemed necessary for BAKER to make an evaluation to determine whether the transmission assembly or transmission kit or accessory is defective, the entire transmission assembly, whether originally purchased as an assembly or kit, must be properly packaged and returned prepaid to BAKER with a copy of the original purchase invoice. If after evaluation by BAKER a defect in materials and/or workmanship is found, BAKER will, at their option, repair or replace the defective part of the assembly.


        Returns are permitted within 90 days of the delivery date. Any merchandise returned for any reason (exchange, credit or modification) must be accompanied by a Return Goods Authorization (RGA) number or it will be refused. Call BAKER to obtain this number prior to returning goods for any reason. There is a 15% re-stocking fee for all returned items. BAKER is not liable for any shipping.


        NOTE: Limited warranty does not cover labor or other costs or expenses incidental to the repair and or replacement of BAKER products.This warranty does not apply if one or more of the following situations is judged by BAKER to be relevant: BAKER OEM transmissions ; (these are subject to the OEM manufacturers warranty only), Improper installation , accident, modification (including but not limited to use of unauthorized parts, transmission oils or lubricants), racing, high performance application, mishandling, misapplication, neglect (including but not limited to improper maintenance), or improper repair.BAKER shall not be liable for any consequential or incidental damages arising out of or in connection with a BAKER transmission assembly, transmission kit, component or part. Consequential damages shall include without limitation, loss of use, income or profit, or losses sustained as the result of injury (including death) to any person or loss of or damage to property.BAKER transmissions, transmission kits and accessories are designed exclusively for use in American V-Twin motorcycles. BAKER shall have no warranty or liability obligation if BAKER parts are used in any other application.If it is determined that a BAKER product has been disassembled during the warranty period for any reason, this limited warranty will no longer apply unless you were instructed to do so by a BAKER Drivetrain technician for diagnostic purposes.

        DD5: Direct Drive 5-Speed Builder's Kit
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        DD5: Direct Drive 5-Speed Builder's Kit DD5: Direct Drive 5-Speed Builder's Kit DD5: Direct Drive 5-Speed Builder's Kit DD5: Direct Drive 5-Speed Builder's Kit DD5: Direct Drive 5-Speed Builder's Kit DD5: Direct Drive 5-Speed Builder's Kit
        Customer Reviews
        4.9 Based on 16 Reviews
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        Charles S.
        United States

        I'm still working on getting it back together. All of the parts from the Baker DD5 rebuild kit are lot stronger looking, than the original Harley transmission parts. The bearings and the seals are better quality than stock. Cannot wait to get it on the road.

        Armen G.
        United States United States
        • What model motorcycle do you ride? 2004 FLHTCUI


        I have had installed more than 1 direct drive 5 speed. Tha last on my own 2004 ultra with S&S 124 and electric shifter All of these transmissions are great. All I can compare them too are modern day metric motorcycle transmissions so smooth no clunky N to 1st all other gears shift with a simple click up. I can’t believe HD hasn’t tried to rip Baker transmissions design off yet but it is truly amazing. Thanks Baker

        BAKER Drivetrain DD5: Direct Drive 5-Speed Builder's Kit ReviewBAKER Drivetrain DD5: Direct Drive 5-Speed Builder's Kit Review
        Canada Canada

        Best deal

        Great price and all of the ones we installed (check our sale history think we sold 3-4?) our customers love it. Wish it was still offered ! Chris @ Hawgworx

        John W.
        United States United States
        • What model motorcycle do you ride? 96 Softail Custom


        Great quality and install was super easy.

        Pablo R.
        United States United States
        • What model motorcycle do you ride? Flhtcu 1991

        Direct drive,,,, perfect

        After 2000 miles of continuos mountain roads in Puerto Rico I will say that the transmision works perfect . With smooth shifting , and easy to find neutral. I love it

        Web Product ID: 4853298115
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