The rear main seal keeps oil sealed inside the rear of the engine, where the crankshaft connects with the transmission. It can be expensive to repair, often $600 or more, because it typically involves ...

If oil isn’t dripping from beneath your Jeep TJ’s inline-six, it’s because it’s either brand new or the rear main seal has been replaced within the last 40,000 miles. That’s just a fact of four-liter ...

Few things are more annoying than seal leaks of any kind. They stain the driveway and lose all-important lubrication at the same time. Even more frustrating is replacing a seal in a differential that ...