HELP 69 "Spring Special" have 67 rear window cranks?

Another Gov. mandate in 68 to have rubber on the window crank so not to hurt anybody. I bought a new 68 Road Runner and the rubber knob kept coming off because the stud was too soft that held the rubber on. The 67 crank was a solid chrome handle that didn't fall off. I replaced mine with the 67 style cranks so I wouldn't have that problem anymore. Another innovation that was really never tested in real world cars.