Well, I need to give my Peavey T-40 a little set-up the next time I restring and give it a thorough once-over, but sadly the last owner did not include the truss rod adjuster or allen wrenches. I see there are two different truss rod wrenches on Stewmac: 1/4" and 5/16" Gibson style. I'm guessing I need the 1/4", but before I go out and buy one at the hardware store, I'd like to know for sure. Also, what size allen wrench do you use on the bridge? All I have are metric, and they aren't working, so I'm guessing this US made beauty needs a US sized wrench. Thanks a bunch!