

🛠️ Fix leaks, silence noise, and drive with confidence!
Bar's Leaks 1816 Differential Gear Repair is a high-performance additive designed to stop leaks in pinion, axle, and output shaft seals. Compatible with all major gear oil types (GL-4, GL-5, MT-1) and viscosities, it reduces noise and wear while conditioning seals to extend the life of differentials and gearboxes across automotive, heavy-duty, marine, and industrial vehicles.




| ASIN | B0868XFGL1 |
| Best Sellers Rank | #12,703 in Automotive ( See Top 100 in Automotive ) #223 in Oil & Fluid Additives |
| Item model number | 1816-4PK |
| Manufacturer | Bar's Leaks |
| Package Dimensions | 24.21 x 18.59 x 11.4 cm; 479.11 g |
V**V
Working perfectly fastly
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.
V**.
Awesome product. Mixed with 75w-90 and with 75w-140... Great!
Very recommend this item. I mixed with all my liquid for both differentials (front and rear) . Work quite! I like it! next time order more
M**A
Quality
Useless
H**D
Works well
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!
C**.
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!
Trustpilot
3 weeks ago
5 days ago