No, have not replaced the clamp. Will aim to strip down the whole assembly in the next couple of days. May have to bite the bullet and buy 2 overall kits. Aust post is making a fortunate out of me with all these orders

Yep, A rebuild kit is the way to go. You also may want to consider changing the plastic bush which goes through the playfield. They are cheap and don't come with the rebuild kit.

I know what you mean about paying the postie. Had that issuse on my first restoration. Many times I was saying to myself, "Now i need to get one of those!!" This time I am trying to resist buying anything till I get it totally stripped and a list together. Bet I still miss a few things though.