It's a slug! Man those 37s killed it. Prety sure 4.10s are whats in it and I'm thinking 4.56/4.88.
Drove it to the alignment shop which was scary as hog snot. Thing was WAY out of whack. Not as scary as after the alignment shop though. Seemed great till I hit the first good bump at about 45 mph and then death wobble that almost had me in the ditch. BAD. Second worst I've ever experienced. I know they set the toe at essentially nuetral which is what they say factory specs call for on that model year F-350(what the axle came from) but I just heard back from Chris that he recommends .125 total toe. I took it back and had them hook up the track bar. I didnt do that myself because I could have swore I read in the instructions, or saw in the videos, that you should drive it just a bit and then install it. Might have screwed the pooch on that one. Anyway, I had them install it, they said it wouldnt fix it and I needed a steering stabilizer. I didnt argue that a stabilizer only masks a problem, at best, but they couldnt do it away because I cut off the factory mount during the install process. I run a Jeep CJ on 37 MTRs and have never had a stabilizer on that. No death wobble ever.
So they installed the track bar and so far its golden. I white knuckled my way across some pot holes here and there and no wobble. I'm still going to go back and have them readjust that toe, but so far seems the track bar did the trick.
Next up is some gears, but I need to get some experienced advice on which ratio.