Well there's been a good few threads about this recently, as seeing as my parts just arrived I though I would make an overall thread to hopefully answer everyones questions. Below are instructions on how to replace the trem arm holder on any of the ibanez trems (edge, lo pro and the newer ones) with a schaller screw-in holder to improve the overall function of the trem (trust me, its a massive difference for the better)
Step 1 - Take the trem arm out of the guitar you wish to mod, and remove the trem cavity cover plate.
Step 2 - look into the trem cavity from the back, and you will see a cylindrical object which the trem arm pushes into, this will have a small screw on the back (please look to later photo). Carefully remove this screw, allowing the small wire "spring" to come off, store both items in a safe place.
Step 3 - Threaded onto this cylindrical object from the rear will be a nut, this must now be removed. A socket set or set of needle nose plyers will do the trick - be careful though.
Step 4 - Turn the guitar over so you can see the front of the arm holder, you will notice a slot on either side of the hole into which the arm is normally inserted. Get a large flat blade screwdriver which spans the hole, and fits into the slots and unscrew the holder from the main trem unit. You will now have a threaded hole in the trem, like in the picture below.
Right, now for the new bits. I got my trem arm and holder from touchstone tonewoods for about £10, below is a picture of the holder. (sorry about the aweful picture)
Step 5 - Remove the allen bolt from the bottom allowing the main body of the holder to be removed from the actual screw-on section (this will become very obvious if you do the mod yourself, and have the bits infront of you)
Step 6 - insert the correct section of the holder from the front of the block, and add the allen bolt and the other section from the back, compensating for screw length using small washers, if required. Tighten the allen bolt carefully and your done.
Your trem will now look like the one below (allthough probably cleaner
), and will feel more solid and provide more flutter that before.
Hope that helps