As vehicle owners begin to use their truck (cars as well) they report to local dealers of developing problems. Many things show up in long field use and not during short laboratory tests.
An excellent example is the 4 speed shift lever on the 1947-55 Chevrolet and GMC Cab over Engine “COE”. It was found that wear in the lower end of the vertical lever would develop. Even a little wear moved the top end of the lever closer to the dash until finally a drivers knuckle could actually touch the dash!
By 1950, a factory correction was made. The lever was shortened and moved away from the dash. Photos by Kent Zimmerman – Mesa, Arizona
1947 – 50
1951 – 55
Photos by Kent Zimmerman, Mesa, Arizona