Rebuilding the 200-4R: Lip Seals

There are two different lip seals that can be difficult to tell apart so someone new to the 200-4R may inadvertently install them at the wrong locations. They are the inner lip seal for the center support and the outer lip seals for the forward and direct drum apply pistons. I walk you through a couple different ways to ensure you don't mix up your lip seals if/when rebuilding the GM 200-4R transmission for the first time.