Advanced Auto Parts #5970857 for 1973 Chevy C10 truck. Just bought one. If you don't know how to remove the knob and shaft, here is how to do it. There is a very small 'tit' on the bottom with a spring under it. it is about 1/8 diameter. Push it as hard as you can, then pull the know and it should pull completely out. Then you can remove the switch from the back.
2001 Monaco Diplomat 40' PDQ - 08 Honda CR-V