Bars Leaks Axle & Differential Gear Repair is a treatment additive for use with automotive, heavy duty, agricultural, marine and industrial gear oils.  Designed 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.  
Extends system life by stopping leaks, reducing noise and improving gear performance.  Superior anti-wear, anti-foam and anti-corrosion protection.  
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.