Getting the Right SM465 PTO for Your Rig

If you're hunting for an sm465 pto, you probably already know that you're working with one of the toughest transmissions ever put into a pickup or medium-duty truck. The GM SM465, often nicknamed the "Rock Crusher," is a legendary four-speed manual that's been the backbone of countless Chevy and GMC builds since the late 1960s. But what really turns these trucks into versatile tools is that little access plate on the side of the case. ...

May 25, 2026 · 7 min · Surrie Geckos