909
Truck breeding rule
(sh.itjust.works)
Be sure to follow the rule before you head out.
Rule: You must post before you leave.
I’ve seen a fair few cobbled together with tape, but I can’t say whether that’s because the driver needs the extended mirrors and sucks at driving or the get smashed.
They’re supposed to be for when you have a trailer to decrease your blind spot, but I never see them used with trailers.