Measure everything every way possible, If one is not positioned right its really obvious. I have done 2 sets of cab lights. It helps to have 2 people to line everything up. I use tape to make out the dimensions and then drill the holes. If you want just give me a call and I can stop over and help out.
Lots of measuring and lots of masking tape. I used string and a dry erase marker to get everything layed out and then put the masking tape over it. Make sure you have tape down any where you will be drilling!
A forum community dedicated to Ford F-series owners and enthusiasts with a Power Stroke diesel engine. Come join the discussion about performance, bulletproofing, modifications, classifieds, troubleshooting, maintenance, and more!