MXR Overdrive Modifications

The MXR GT-OD, Classic Overdrive M66(S) and ZW-44 are three iterations of tubescreamer-like overdrives that share a common secret: they’re basically the same!

It is well known that there is a simple slide switch inside the Classic Overdrive, GT-OD, and Zakk Wylde Overdrive models. The Zakk Wylde version is sold with the switch in one position, while the Classic Overdrive and GT-OD versions are sold with the switch in the other position.

GTOD/ZW Mod

The internal switch responsible for choosing between “Classic Overdrive Mode” and “Zakk Wylde Mode” is externalized as a toggle switch. I mount it directly to the left of the Tone knob so it’s enough out of the way.

I also offer to change the LED Color to something other than the stock Red color. Choose between Orange, Yellow, Green or Blue.

Tubescreamer-Esque Mods

Since this family of MXR Overdrives is based on the Tubescreamer, and because the Tubescreamer is such a well known circuit, I can look into applying similar mods to these MXR Overdrives. These mods would be custom, so please use the Custom Modification Request form and provide a detailed description of what you like, dislike, and want to change about your MXR Overdrive pedal.

Got Questions? I Got Answers!

Hopefully I covered everything, but if you have any questions on the mods above feel free to contact me using this contact form!

If the mods above aren’t what you’re looking for, you can always request a custom modification through the Custom Guitar Pedal Modification Request form.

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