These are now discontinued., probably the last ones left commercialy new GM in the box's anywhere.
If you want one. . don't wait.. the LHS & RHS have long been discontinued by GM and not widely available ANYWHERE.
Choose from LH or RH sides. ... OR.. simply TWO for a matched pair.
Over time, the nylon gear inside your motor becomes stripped and the contact switches cease to work properly. Common symptoms include: -Motor continues to run after headlights have been shut off....continues to run and makes a chattering noise -Headlights will come up or go down intermittently...headlights will go halfway up and then fall back down.
Get one complete. .new trouble free .. while you can.