If I may return on the 'no looking for footnotes when reading this or that author'.
First, the excerpts from the W. Bodies book on the P-47. Great book as it was, it is harshly wrongly opinionated on some aircraft:
The wing profile and thickness of the P-38 were certainly both 'slower' and thinner; the Tempest II was outfitted with drop tanks. We cannot speak of duplicating the wing from the P-47N for the Tempest. The P-47 with a 20mm cannon was nothing more than an one-off, and 4 Hispanos were at least a bit more devastating than 8 BMGs, not that it mattered though.
The book by Richard B. Davis, 'Bombing the Axis powers', would lead us to believe that P-38 and P-47 received an extra fuselage tank each. Not the case for the P-38 (it did receive 2 x 55 US gal tanks in wing), nor for the P-47 - the main fuselage tank 'grew' higher, hence it carried 270 instead of 205 US gals.
Next - the widely acclaimed (also from me) book 'America's hunderd thousand' states that P-47M was outfitted by belly rack only, with 110 US gals of external fuel as maximum. There is enough of photos in the 'net showing the P-47Ms carry also wing-mounted drop tanks, eg.
here. That should not be a great surprise, the P-47D-30 was the 'donor' of the wing for the P-47M, and that wing was plumbed for drop tanks.