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Red Line Heavy ShockProof Gear Lube

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.The Red Line Heavy ShockProof Gear Oil has a thickness greater than SAE 75W250, but has a unique low fluid friction like 75W90.

  • The Red Line Heavy ShockProof Gear Oil is recommended for heavily-loaded racing bikes. Not recommended for most synchro applications due to the product's extreme slipperiness.
  • DD6 Fluid Capacity Dry: 22-24fl-oz
  • DD6 Fluid Capacity Wet: 18-22fl-oz
  • OD6 Fluid Capacity Dry: 22-24fl-oz
  • OD6 Fluid Capacity Wet: 18-22fl-oz
  • F5R Fluid Capacity Dry: 22-24fl-oz
  • F5R Fluid Capacity Wet: 18-22fl-oz
  • Frankentranny Fluid Capacity Dry: 22-24fl-oz
  • Frankentranny Fluid Capacity Wet: 18-22fl-oz
  • F5K Fluid Capacity Dry: 22-24fl-oz
  • F5K Fluid Capacity Wet: 18-22fl-oz
  • DD5 Fluid Capacity Dry: 22-24fl-oz
  • DD5 Fluid Capacity Wet: 18-22fl-oz
  • F6R Fluid Capacity Dry: 30-32fl-oz
  • F6R Fluid Capacity Wet: 26-28fl-oz
  • DD7 Fluid Capacity Dry: 30-32fl-oz
  • DD7 Fluid Capacity Wet: 26-28fl-oz
  • F6K Fluid Capacity Dry: 32fl-oz

      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.

      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.


      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. 


      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. 


      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. 


      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.

      Red Line Heavy ShockProof Gear Lube
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      Customer Reviews
      5 Based on 4 Reviews
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      Filter Reviews:
      Blaine S.
      United States United States

      the best for my baker 6spd

      Stan H.
      United States
      red line gear lube

      excellent product

      Brad C.
      United States
      Good stuff for moving parts.

      First off, I've done a lot of research on lubrication of air cooled v-twins and Red Line products come out right there at the top. Next,the shops in my area don't stock it. It looks as though Baker has done research on this product as well to recommend it in their products. I've had excellent results with the parts and transmission that I purchased from Baker so may as well order some oil from them too. Only draw back is that shipping adds a little more to the cost of the oil, suppose you could have them package it with a new transmission to take some sting out of it. Just a thought.

      Tom H.
      United States
      Knowledgeable Staff

      I wanted to thanks the knowledgeable staff for there help and exceptional service. I look forward to dealing with them Thanks again.

      Web Product ID: 9225657614
      Baker Drivetrain Team Illustration