Hope this Bronco family can help me with another problem. Just got my 75 F-100 4X4 back from the body shop, new fenders, cab corners, complete paint job.. They did a nice job but my hood tach isn't working. It's an old Dixco hood tach. Of course they deny any wrongdoing, but it was working when it went in the shop and broke when it came out. My problem is they glued the tach housing to the hood, ran a bead of sealer around the edge, then painted. It looks beautiful but I now need to repair my tach. Has anyone worked on one of these hood tach units before? I'm hoping that I can remove the retaining nut from underneath the hood (will require cutting a larger hole in the webbing support of the hood to be able to work on removing the nut which obviously had a special tool to install) and remove the tach assembly from the front of the housing. I guess what I'm asking is, can the tach unit come out of the front of the housing without taking the whole assembly off the hood? If not, it looks like a nice paint job is going to get screwed up. Thought I'd ask if anyone knows anything about these old hood mounted tachs before I start tearing into things. Hope you can help. tater 
