Re: Replacement Trems for my Roadstar II?
It's nearly impossible. I made one conversion of the Pro Rocker (the one with fine tuners) to an Edge and I'll never do it again. The entire trem route is in a different spot. It's pulled back quite a bit. The trem block is farther back on the bridge than a Floyd. The studs are also very far apart from eachother. So IF you can get them out without chipping the paint, you're new Floyd route will barely cover the old stud holes, unless you route oversized.
The good news (perhaps) is that gpenguins may have some parts for that bridge, but they'd be in chrome. We'll see if he chimes in here. I have that same bridge on an '83 Roadstar Strat style guitar, with three singles and a pickguard (RS405) and when it's fully functional that bridge is phenomenal. Especially if you block it back against the body, or with a Tremol-no or other blocking device. It is wonderful because all the string pressure is forward, like a Les Paul with a one piece wraparound bridge. The strings pull forward on the bridge and saddles, and the studs and anchors are huge. So they're transferring vibrations a lot like a hardtail, even though it's a trem.