Serious question. For those who are basically healthy at what age did you have to give up full on car builds do to the physical work being too hard? I am almost 50 and have been wrenching on stuff since I was 10 years old, cars since I was 17. It is an obsession and I have multiple projects always in progress, full on frame off builds with mild fabrication as needed. I wonder how many good years I have left until I will not be able to do it. I am hoping to still be able to do it at 70 but of course I have no idea. Anyone close to 70 or older still doing full builds?