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Factory 6-Speed Tapered Roller Bearing Kit

Heal your Achilles heel with the BAKER Main Drive Gear Bearing Kit for 2007-up Big Twins!

  

P/N 640-67

Kit includes

  • BAKER double tapered roller bearing assembly
  • Replacement HD main drive gear 
  • Replacement countershaft bearing

 

Main Drive Gear Bearing Kit Instructions

This kit provides everything you need to eliminate the all too common stock maindrive gear bearing failures. We include our exclusive BAKER double tapered roller bearing assembly, a replacement cruise drive main drive gear, and our new main drive gear/countershaft bearing installation and removal tool.

Also available is a Transmission Rebuild Kit to go along with this double tapered roller bearing kit. P/N TRK-CD6-2

 

  • 2006 and later Stock Dyna 
  • 2007 and later Stock Softail / Touring

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

    Chrome

    Polished

    Raw

    Wrinkle Black

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

    TERM AND CONDITIONS                                                                                         

    • 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.

    LIMITED WARRANTY POLICY

    BAKER™ transmission assemblies, transmission kits, primaries, and oil pans 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. BAKER™ clutches, kicker cover kits, belt drives, F6F kit, reverse systems, covers and accessories 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. 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 invoice of purchase. If after an evaluation has been made by BAKER™ and a defect in materials and/or workmanship is found, BAKER™  will, at BAKER™  option, repair or replace the defective part of the assembly. 

    WARRANTIES FOR "INSIDER SPECIAL" PRODUCTS

    Due to the uniqueness, low price and assembly outside of typical production process of products indicated as Insider Special products, purchasing these Insider Special products include a warranty so to guarantee the original purchaser to be free of manufacturing defects in materials and workmanship for a period of 1 year from the date of purchase or up to 12,000 miles. We have provided extended options for you to purchase below. 

    RETURNS AND EXCHANGES

    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 charges. 

    ADDITIONAL WARRANTY PROVISIONS

    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 manufactures 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.

    The words H-D®, Softail®, FXR®, Dyna®, FLT®, FLH®, Sportster®, and Buell® are registered trademarks and are for reference only.



    Factory 6-Speed Tapered Roller Bearing Kit
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    Customer Reviews

    Based on 12 reviews
    5 Star
    92% 
    11
    4 Star
    8% 
    1
    3 Star
    0% 
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    2 Star
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    Your input is very much appreciated. Share it with your friends so they can enjoy it too!

    DF
    02/06/2019
    Dale F.
    United States
    • What model motorcycle do you ride? 2009 Super Glide FXDC

    Fixes a Harley problem

    I didn't install this my self. My shop said the part was beefy, and I shouldn't have this problem again.

    LM
    09/05/2018
    List M.
    United States

    The Best Company out there

    I love using all your products

    RJ
    08/28/2018
    Rick J.
    United States

    Main drive gear & street door

    I really like the tapered timkin style bearings. The only issue I have is the .104 shim it came with was too tight. .005 at the loosest point.0000 at the tightest. I installed what was supposed to be a.106 shim that measured.107 I am at .003 clearance. The maximum. I would preferably be .0015-.002. I do like the street door. Are replacement bearings available for it. Thanks for great products.

    Rick J. verified customer review of Factory 6-Speed Tapered Roller Bearing KitRick J. verified customer review of Factory 6-Speed Tapered Roller Bearing KitRick J. verified customer review of Factory 6-Speed Tapered Roller Bearing Kit
    WM
    08/14/2018
    william m.
    United States

    And really great product

    I watch The Baker videos over and over and then I took a chance got all the tools and ripped it apart it really makes sense with what they came up with to replace the flimsy stock Harley-Davidson bearing set up thank God somebody was using your head easier than I thought to install and totally no noise at all this is a great product

    william m. verified customer review of Factory 6-Speed Tapered Roller Bearing Kitwilliam m. verified customer review of Factory 6-Speed Tapered Roller Bearing Kitwilliam m. verified customer review of Factory 6-Speed Tapered Roller Bearing Kit
    SR
    07/30/2018
    SEAN R.
    United States

    Great setup

    Very impressed, I will be continuing to use them in my shop to help my clients get back on the road, Sean Class A Choppers

    Web Product ID: 9847666510
    Baker Drivetrain Team Illustration