🛠️ Fix leaks, silence noise, and drive with confidence!
Bar's Leaks Differential Gear Repair is a powerful 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), it reduces noise and wear while extending the life of manual gearboxes, differentials, and axles. Made in the USA, this 16.9 oz treatment boosts gear oil performance with superior anti-wear, anti-foam, and anti-corrosion protection.
| Brand | Bar's Leaks |
| Package Information | Bottle |
| Liquid Volume | 16.9 Fluid Ounces |
| Item Weight | 16.9 Ounces |
| Recommended Uses For Product | Anti-Friction |
| Viscosity | 75W-90, 80W-90, 75W-140, 85W-140 (depending on the mixed lubricant) |
| Item Form | Liquid |
| Global Trade Identification Number | 10046087018160 |
| Manufacturer | Bar's Leaks |
| Unit Count | 4.0 Count |
| Number of Items | 4 |
| Model | Differential Gear Repair |
| Item Weight | 1.06 pounds |
| Package Dimensions | 9.53 x 7.32 x 4.49 inches |
| Item model number | 1816-4PK |
| Manufacturer Part Number | 1816-4PK |
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.
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: 10/10Price: 10/10Leak repair: 9.8/10
A**R
Seems to work ok
Seems to work ok
P**.
Superb product
This product is very useful & works as it should Thankyou.
A**R
Worked for me
Used in a diesel pusher 40 ft motorhome, worked ! I put 4 quart in with 6gal of 80-140 synthetic and no more rear differential whine
R**Z
Keep it full
It’s a treatment seams to work
T**N
amazon super slow shipping
works great
O**Z
Useful
It works very well - thank you!
Trustpilot
3 days ago
2 weeks ago
