Lubegard

Lubegard 19610 Dr. Tranny Instant Shudder Fixx 2 Ounce 2

High-performance automotive accessories made for confident daily results

$33.72

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Why customers choose NorthTrail Auto

Lubegard Dr. Tranny Instant Shudder Fixx is a concentrated transmission additive designed to quickly reduce or eliminate torque converter shudder and improve shift feel when used as directed.

Designed for automatic transmissions and torque converters, this two-ounce twin pack delivers a concentrated formula that targets clutch chatter and shudder without requiring a fluid change. It blends into most automatic transmission fluids to condition friction surfaces and help restore smoother engagement. Use it for isolated shudder events or as a maintenance boost after service.

How do I use Dr. Tranny Instant Shudder Fixx safely and effectively?

Application is straightforward: add the recommended dose to the transmission fluid while the engine is running at normal operating temperature, then allow a short drive cycle for the additive to distribute. Always follow vehicle manufacturer guidance and the product dosing instructions on the bottle so you don’t over-concentrate the system.

  • Use one 2 oz bottle per typical passenger car/ light truck application or as specified.
  • Warm the vehicle to normal temperature and add through the transmission dipstick tube or fill port.
  • Start engine, shift through gears, then drive gently for 10–15 minutes to circulate.
  • Check for improved shift feel; repeat only if directed by product instructions.

What kinds of transmission problems can this product help with?

Dr. Tranny Instant Shudder Fixx targets clutch chatter, torque converter shudder and inconsistent engagement that can develop from worn or glazed friction surfaces. It’s formulated to recondition friction materials and stabilize friction coefficients to reduce noise and vibration related to shudder.

  • Reduces torque converter shudder and clutch chatter symptoms.
  • Improves shift feel and perception of smoother engagements.
  • Conditions friction surfaces to help restore consistent operation.
  • Not a repair for mechanical damage—use with diagnostics if problems persist.

Will this additive work with my vehicle’s transmission fluid?

Dr. Tranny Instant Shudder Fixx is compatible with most conventional and synthetic automatic transmission fluids, but compatibility with specific formulations can vary. Check the product instructions and your vehicle owner’s manual; when in doubt, consult a transmission specialist before use.

  • Generally compatible with ATF Dexron, Mercon and many synthetic blends.
  • Not intended to replace scheduled fluid changes or repairs.
  • Safe for use in many passenger cars and light trucks when used as directed.
  • Perform a small test application if you have a unique or older transmission type.

Who is this product for? Lubegard Dr. Tranny Instant Shudder Fixx is aimed at vehicle owners and technicians wanting a concentrated, easy-to-use additive to address torque converter shudder or clutch chatter without immediate fluid replacement. It suits DIY mechanics, service shops, and fleet technicians looking for a targeted treatment to improve shift smoothness as part of routine maintenance or troubleshooting. Remember, persistent or severe transmission symptoms should be evaluated by a qualified repair facility; this product is an additive treatment, not a mechanical overhaul.

FAQ

Q: How much of the 2 oz bottle do I add?

A: Use one 2 oz bottle per typical passenger vehicle unless product instructions specify otherwise.

Q: Will it fix a transmission that slips or leaks?

A: This additive helps reduce shudder and improve shift feel but won’t repair leaks or major mechanical failures.