Gear Repair (1816)

Gear Repair


  1 Review

Bar’s Leaks Gear Repair is our new, advanced treatment gear additive for use with automotive, heavy duty, agricultural, marine and industrial gear oils. It is engineered to mix with all synthetic and conventional petroleum GL-4, GL-5, MT-1 gear oil / lube grades including 75W-90, 80W-90, 75W-140, 85W-140 and all others.


Add 5 to 6 ounces per quart of system capacity. Do not overfill. One bottle treats up to 3 quarts of gear oil. Can be added to top-off existing low fluid level, or when changing oil. Results will be immediate, or noticeable within 100 miles, or 2 days of driving. If leaks or noise continues, second application may be required or mechanical attention is needed.

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  • Use with all synthetic and petroleum gear oils
  • Seals leaks, stops noise and improves performance
  • Engineered for the most demanding applications
  • Formulated and manufactured in USA

You asked for a heavy-duty professional grade gear repair formula, and you got it.

This new formulation extends system life by stopping leaks, reducing noise and improving gear performance. It leads the DIY and DIFM markets due to its superior anti-wear, anti-foam and anti-corrosion properties.

This product works in all manual gearboxes, differentials, open & posi axles and more. Stops pinion, axle, output shaft and other seal leaks. Reduces grinding, whining, clunking and protects gears. If you are dealing with a leak, or a generally noisy gearbox, this Bar’s Leaks Gear Repair is a good fit for your application.

This formula also features:

  • Seal Conditioner – stops current and prevents future leaks by protecting and reconditioning seals.
  • Extreme Pressure (EP) and Anti-Wear (AW) Agents – provide excellent metal-to-metal wear protection reducing noise and gear temperatures. Our sulfur, nitrogen and phosphorus additives meet the requirements of API GL-4 and GL-5 specifications.
  • Friction Modifier – supplements the EP/AW additives to help reduce noise and wear. This in turn helps shifting in a manual transmission and also stops chatter in limited-slip posi-traction axles.
  • Performance Additive Booster – includes tackifying agents and highly sheer-stable multigrade viscosity modifiers to keep oil on the gears and bearings where it can better lubricate, especially at higher temperatures. Pour Point Depressant (PPD) allows product to flow even at very low temps.

These additives stop and seal gear oil leaks as well as reduce noise. Gear Repair renews worn oil and restores older and high mileage gear performance. Safe to use on differential axles (limited slip, posi, open, electric), gears (hypoid, spider, worm, rack), transfer case (AWD, 4WD, gear oil, ATF), manual standard transmission (gear oil, engine oil, ATF), hubs, marine and much more. Helps with small leaks (if you need to add oil 1x per month), medium leaks (If you need to add oil 1x per week), and other oil related problems.

For more technical information, view our Product Data Sheet.


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 1 reviews
 by Baron lambert
Worked great for me

Gear repair is the best!

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