Overdrive is made for pushing your amp to a bit more distortion and tightening/compressing your sound. Also might add a bit more treble and foremost it pushes your tube amp to a more saturated distortion.

Distortion - Just plain distortion as effect. Will color your tone and most probably sound **** if added on top of the amps distortion as a OD would not!
-Schecter C-7 Hellraiser
-Ibanez MTM2
Amplifiers and Cabinets:
-Peavey StudioPro
-Randall RH50T Head
-Behringer 4x12 cab
-Ibanez WD-7 Wah
-Boss SD-1
-MXR 10 Band Equalizer

7-String guitars are badass!
i hate this question.
overdrive and distortion are the same thing.
they both are a clipped signal.
the first OD pedal was made to do the same as the first Dist. pedal, they were meant to mimick the sound of a amp on 10.

od pedals do not magically make your tubes distort at low volumes.

and learn what a search bar is please.
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