welcome to the site, im sure many here will tell you get a nelson tune lol, i will too. If your towing a lot of the time a shift kit, tranny cooler and extra capacity pan will keep the transmission running cooler and last much longer. I have a shift kit in my 4l80e and during normal driving it just shifts firm where you feel it shift but not anything harsh at all, under hard acceleration it shifts fast and crisp. Allen Nelson built it all for me though. I personally don't know if those wheels would fit well but if you measure the backspacing you have now and crank the wheels you will be able to see how much room you have to go.


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