War Eagle, I agree with Mr. Lincoln. I have single reservoir systems on 6 of the 9 vehicles I own and have never had a problem. It doesn't even cross my mind as being "unsafe". The '56 Cadillac has been a daily driver for 20 years - rebuilt at the time of purchase. They're the best brakes on any vehicle I own - 12" drums with 3" shoes all around.
I'm not aware of any state that requires antique vehicles to be retro-fitted with seat belts. If they weren't required when the vehicle was built they can't force you to put them in.
One of the best reasons to install lap belts in a vehicle is to keep you behind the wheel at all times. It's pretty easy to slide around on a vinyl bench seat when going around curves or in a skid.
Last edited by Otto Skorzeny; 01/15/2022 4:06 AM.