overrun sprag Archives - Transmission Digest
Only One Way – the Right Way

Those of you who read my articles know that from time to time I may bore you with gear-train operation. It’s a part of the transmission’s operation that has always fascinated me. Understanding it goes a long way toward diagnosing various complaints, especially those involving noise.

In this instance I’m going to talk about a one-way-clutch device in a 62TE transmission (figures 1 & 2). But I first need to go through my boring explanation of the “foot bone being connected to the ankle bone” type details of the underdrive centerline shaft known as the underdrive compounder assembly (Figure 3).