1. Tom Woods

2. My Smitty has worked well for me, but it is really up to you and your budget.

3. I think you would be good with 4.88s but if you are really thinking 37's then you definitely want 5.13s. However, that opens up a whole nother can o worms (theoretically speaking).

4. I will recommend my Rancho rear as it was only $400 but if you are bad ass enough to build your own then more power to ya