Getting the Best from Your ASP3 Transmission

If you've been spending any time behind the wheel of a heavy-duty truck lately, you've probably realized that the asp3 transmission is a bit of a different beast compared to the old-school manuals we used to see everywhere. It's an automated manual transmission (AMT), which basically means it has the guts of a manual—gears, a clutch, the whole nine yards—but uses a computer to do the actual shifting for you. For some, it's a godsend that saves their left knee from total destruction, while for others, it can be a bit of a learning curve to get used to how it thinks. ...

May 19, 2026 · 6 min · Trueman Wlk