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We understand that supporting our products and customers is extremely important. This is why PAR provides a full parts replacement or repair 12 month warranty for any manufacturing, workmanship or quality issue for all of our gearset and drivetrain products for that extra peace of mind. Also covered by the same warranty are any custom gearsets or ratios (Any parts being returned for warranty must be shipped back as packed/shipped to you when purchased. PAR will not cover any costs related to transmission removal/refit or consumables.).


The correct lubrication and maintenance interval is mandatory to receive the full 12 month warranty. With the high performance gearsets, contact ratios are reduced with the aggressive tooth profiles required for gear strength, hence place incredible stress and loads onto the transmission’s gear oil. The only gear oil recommended by PAR is a full synthetic SAE GL5 or GL6 for all transmissions with a recommended change interval of 7,500km. Failure to comply with these recommendations can result in accelerated gear wear and breakage which will not be covered under warranty.


Some recommended gear lubricants are:

  • NEO Synthetic 75W-90HD
  • NEO Synthetic 75W-90RHD (highly recommended for circuit racing and prolonged high temperature applications)
  • Motul Gear 300 75W-90
  • Motul Gear Competition (recommended for circuit racing and prolonged high temperature applications)