Which tire bracket is the best one?

http://www.quadratec.com/products/22202_1000.htm

http://www.quadratec.com/products/22202_8000.htm

If I put 35" x 12.5", do I have to relocate the spare tire red light?

 

I'm not sure how much of a difference they make. They just aren't going to be as sturdy as your stock tire because the larger tire will not make contact with your rubber posts that stick out from your tailgate.

I know i have a bracket (dont remember which one) but the 3rd brake light is pretty much useless with my 35" Toyo M/T on there.

for me the bracket is just a stop gap till I can afford to spring for the rear bumper and tire carrier combo I intend to buy.

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