Bridge adjustment


Nov 26, 2018
Central Indiana
Hi All,
I’ve got a 5420 T and had it all set up and some fret leveling. The guitar played amazing, then I noticed the high E, and B strings weren’t ringing clear. I looked at the bridge and the treble side had moved almost all the way down, I turned the thumb wheel counter clockwise and raised the treble side of the bridge until the E and B strings were again ringing clear. But have any of you experienced the same situation? And is it something that should be addressed or does that bridge have a tendency to go out of adjustment every so often?
Thanks ,


Gold Supporting Member
Oct 18, 2015
Maybe the neck bowed a bit back after releaving the tension of the strings while working on the frets?
Then it will "come back" after some time.


Friend of Fred
Platinum Member
Dec 27, 2017
Santa Cruz
I had the threads in a thumb wheel strip out a few years ago on my 5420. It was an easy fix with a new thumb wheel in my case.

Mine did not just get lower, it slammed down while I was playing it. It made a huge sound as it echoed through the hollowbody and made me jump….!


Country Gent
Gold Supporting Member
Mar 20, 2010
Great question and observation!

The short answer is Yes.
I have seen that happen with a 5120T that had experienced a lot of play time. Fortunately this is a low cost fix. Sometimes the threads on the thumb wheel get out of tolerance or sloppy. The vibration from playing, will cause it to move down under pressure.

You can either replace the thumb wheel, or adjust it up high, place a little clear nail polish on the threads, and adjust the wheel back to the desired position, let the polish dry. It should be fine.


Senior Gretsch-Talker
Gold Supporting Member
Nov 13, 2009
Monkey Island
Ya lost me, I don’t follow what your saying?
The resonance of your guitar makes the guitar parts vibrate. Combined with the string tension exerting Force on the bridge, the bridge is pushed down the threads. A slight burr(on the thread) would probably have stopped the downward spiral.