no...I've got 3.55 right now...Does it match your current gears?
But otherwise, I'd go with a GM 14bolt... because they're so common and cheap, and you might even score one with a factory locker.
Since dave helped me build a 14 bolt i agree with prettymuch everything he said....:stupid X2 on the 14 bolt if you don't need VSS. With a drop out third member for the pinion and threaded carrier adjusters the 14B is WAY easier to regear than the 10.25. Parts for it are somewhat cheaper, you can get a sweet bolt on pinion guard for it thats not available for the 10.25, it has a third pinion bearing supporting the head of the pinion that the 10.25 doesn't have, and they're so common in the junk yards that they're usually cheap. You can probably find a 14B for that same $100 price you were mentioning for the D60. I've set up two 10.25's in the last few months, and then I did a 14B it pissed me off how much easier it is to set those things up. If I didn't need VSS I'd have one under my truck.