The SPC Performance GM cam adjusting wrench makes it easy to turn the control arm alignment cams on many modern GM and Chevy heavy-duty trucks. The tool surrounds the entire perimeter of each cam to provide a no-slip grip, which helps on the hard-to-reach and often rusty original-equipment cams. It fits many late-model GM HD trucks, including Silverado and Sierra 2500 HD and 3500 HD, plus Colorado and Canyon.
- Type: control arm cam adjusting wrench
- Application: late-model GM and Chevy HD trucks
- Design: surrounds the full cam perimeter for a no-slip grip
- Benefit: reaches hard-to-reach, corroded OE cams
- Fits: many GM HD trucks including Silverado/Sierra 2500 HD & 3500 HD, Colorado, Canyon
- Part number: 45945
FAQ
What is the SPC 45945 wrench for?
It turns the control arm alignment cams on many modern GM and Chevy heavy-duty trucks.
Why does it wrap the whole cam?
Surrounding the full cam perimeter gives a no-slip grip, which matters on rusty, hard-to-reach OE cams.
Which trucks does it fit?
It fits many late-model GM HD trucks, including Silverado and Sierra 2500 HD and 3500 HD, Colorado, and Canyon.

