I don't understand what you're asking in your first question, not sure what you mean by "hung up by the spring". The pawls will work in pairs so when two of the pawls are engaged on the teeth of the body then the other two will be pressed down. When the body turns, the pairs of pawls alternate one pair engaged, one pair compressed, and they repeat.
On the second question, pawls can not be exchanged from hub to hub. I don't know off hand what year Mavic changed their pawl design, but they are currently using a harder pawl with a plastic carrier. It works much better than the old one piece pawls.
On the second question, pawls can not be exchanged from hub to hub. I don't know off hand what year Mavic changed their pawl design, but they are currently using a harder pawl with a plastic carrier. It works much better than the old one piece pawls.
