The original lower pivot bolts are plenty long enough to back out at least 1/2"!! I also will put just one bolt in the far passenger side hole to be able to access behind the drivers side from the top to hook up the speedo cable and such! Leave the glovebox insert out to hook up the heater box cables if need be, and I'll also leave the radio out until the dash is installed for access around the middle for hooking up heater hoses and the like!!