

🛡️ Stop leaks, silence noise, and drive with confidence!
Bar’s Leaks Axle & Differential Gear Repair is a powerful additive designed to stop seal leaks and protect gears in all manual gearboxes, differentials, and axles. Compatible with a wide range of synthetic and conventional gear oils, it delivers superior anti-wear, anti-foam, and anti-corrosion protection while reducing noise and extending system life. Made in the USA and highly rated by users, it’s the go-to solution for professionals seeking reliable, long-lasting drivetrain performance.






| ASIN | B0869GRFC7 |
| Best Sellers Rank | #9,964 in Automotive ( See Top 100 in Automotive ) #94 in Oil & Fluid Additives |
| Brand | Bar's Leaks |
| Customer Reviews | 4.4 4.4 out of 5 stars (1,070) |
| Date First Available | March 23, 2020 |
| Item Form | Liquid |
| Item Weight | 1.06 pounds |
| Item model number | 1816 |
| Liquid Volume | 16.9 Fluid Ounces |
| Manufacturer | Bar's Leaks |
| Manufacturer Part Number | 1816 |
| Material | Petroleum |
| Model | Differential Gear Repair |
| Number of Items | 1 |
| Package Information | Bottle |
| Product Dimensions | 3.5 x 2 x 8.8 inches |
| Recommended Uses For Product | Fleet and plant maintenance. |
| Specific Uses For Product | Fleet and plant maintenance. |
| UPC | 046087018163 |
| Unit Count | 16.9 Ounce |
C**.
Stopped my leak
Noticed a leak while in arizona, wasn’t expecting much if anything. I am surprised because so many “snake oil” products don’t work. My pinion seal was leaking had about 800 miles to home. Put it in and topped off differential when I filled up with fuel. The next fuel up about 350 miles I checked the diff, no leak, checked to be positive I had fluid in it still and was surprised it was 3/4 full still. Topped it off and went on. Checked the next fill and was still full. I’m happy, but still getting seal replaced. It worked in a pinch!
T**N
quality
helped with leaking seals
S**.
Doesn't hurt to add if you suspect a leak.
Used some in what I suspect to be a slightly leaky (non-limited slip) differential. Good to have just in case.
A**R
Seems to work ok
Seems to work ok
C**S
Okay
Okay but did not stop the leak in my 2005 Tacoma. Maybe if I had put another bottle in would have worked.
R**N
GREAT PRODUCT!
My girlfriend has an 08 rav4 that had a leaky rear axle seal and viscous coupler. The leaks were both fairly small but within a month the differential would be down to about half full which made me very weary whenever she had to go somewhere. The last thing I would want is to put a rear diff in her car. I typically don't trust these stop leak type of products because in my experience they're usually just snake oil. I read the reviews and figured I had nothing to lose so I tried it out. I must say this stuff is amazing, I added just a little bit over the recommended amount to the rear diff and 2 months later the fluid is still full. I often look under the car to check for drips and there is never a drop. There used to be small drops of gear oil hanging off of the diff about to fall onto the ground but this has completely stopped. You can still see where a very negligible amount of gear oil is leaking down the side of the diff below the seals so I don't think the leaks have stopped 100% but more realistically they've probably stopped about 90-95%. This additive is probably more of a temporary fix because leaking seals usually get worse over time but it's gotten me 2 months without having to pull cv axles and replace the seals so I am very pleased. I cannot speak on the gear repair or ability to stop noisy rear axles that this product claims because I didn't have that issue but it's ability to stop leaks seems to be great. I had very slow leaks and it did well for me but I doubt this stuff would help with more serious leaks. Overall I think this is a great product! Quality: 10/10 Price: 10/10 Leak repair: 9.8/10
R**A
Satisfied customer.
The 4 pack is a great value...both 4 for the price of 2.
J**E
As expected
Works good
H**D
Works well
V**V
Hello it's worked.bars gear repair high viscosity oil filled in jeep liberty rear wheel differential housing due to abnormal sound while turning especially. Value for money.
A**R
Yes i liked it & i used it on my 1955 Buick Century.
S**Z
وصل المنتج كما طلبت والتغليف ممتاز والوصول في الوقت المحدد ، وتحت التجربه واثق في هذه الشركه ومتأكد ان منتجاتها ذات فعاليه
J**H
The leak wasn’t too bad to start with and this has improved things further but not stopped it entirely. The product is of a delicious consistency!
Trustpilot
2 days ago
5 days ago