I have a 89 f150 5 speed 4x4 with 31-11.50's and stock gears.

I want to put a 4 inch lift and 33-12.50's on it. I was wondering if the stock gears would be fine because it has to be reved above 1500 rpm now to take off and not stall out and i am wondering what it will be like with bigger tires.

I am hoping to do this for less than $2000 and was wondering what is a good kit and tires to use. i will only be mudding in it every once in awhile and i think i can use the wheels i have now.

thanks for any help