Tire Tube replacement question?

[RTPbee81]

Tires were replaced (they are Universal) prior to my purchase due to dry rot, they appear new, the spare had never hit the pavement (nubs were still intact), until Sunday. Tube valve separated from the stem so assuming the tubes weren't replaced, all valve stems look pretty old.


I ordered new tubes and liners from Coker, should be here tomorrow, I have a friend who owns a tire shop but has never mounted a tire for an A, any suggestions or things to look out for when he dismounts the tire's and replaces the tubes?


He mentioned he has no idea what he will find once he takes out the tube...