This differential will fit a 2013 F150 RWD/2WD truck as long as it has a 9.75" rear end. Just keep in mind, that the 2009-2014 F150 RWD trucks could come with (and often did have) 8.8" rear ends, so verify your truck's rear end type before ordering. As for the Master Install Kit, we do recommend grabbing one for a couple of reasons: 1). You'll in all likelihood need to reshim for the new diff to get proper backlash, even if you're reusing the same ring and pinion. 2). It's really hard to not damage the bearings and races when doing a differential swap. 3). On a seven year old truck (at the time of this writing), it's probably a good idea to replace the seals anyway. We can ship to Hawaii. Give us a call directly at 623-434-5277 for a shipping quote.