If you've ever installed an automatic transmission, you know that setting the TV cable adjustment to achieve the correct standard internal line pressure and proper shifting is extremely important.

In the last two months we've carefully taken you through the disassembly, cleaning, inspection and initial reassembly of a stock Powerglide transmission. This month we'll conclude this feature with ...

The transmission valve body is among the most important components of your vehicle's transmission system, yet it often goes unnoticed until something goes wrong. As a key player in the functionality ...

Note that the 10-speed and Allison-branded 10-speed automatics used in the Silverado HD and Sierra HD use a different valve body. Prior to the Gen 3 part, GM was running the Gen 1 valve body (part ...