....Still trying to find the reason ALL my cluster lights are out on my 94 LS 400 until the car warms up. I am convinced it must be a common ground or solder joint or crack in the ribbon backplane for just the bulbs. You can see that the temp, tach and speedometer are working. I have taken the cluster out and tightened the screws but no help. So...

Does anyone have the part numbers and contact information to order the full set of repair manuals for this car? I'm hoping that the wiring diagram may show the ground links behind the cluster. Thanks for the help.