ChuckTuna

I believe that is the site I was using to determine what I needed for the LT to have 3.42 ratio. Last night when I posted about the RST, I did not have access to my computer which is helpful as Ctrl + f can help navigate more easily (I don't even want to bother trying it with my phone). I was able to determine that the RST is capable of having the All-star package although (not 100% sure about this) I think it requires the truck to have bucket seats unless I misunderstood the sidenote. While I wouldn't consider that a deal breaker, I don't mind the bench seat either.

Ah, I thought the RST pictures were leather but if you think it's still only the LTZ and HC, I'll take your word for it. If the RST is on the table I would have to check if getting the G80 is an option. I basically figured out that the all Star edition covers all the bases required to get NHT without the Z71 deal breaker. I have decided to hold off on buying until next year, partly because I will be in a better financial position but more because I think the '19 model is more practical and I am more confident in what I should be buying the All star NHT LT without having to play the RPO shuffle at the dealer for a current '18 model. I also want to read customer reviews about the truck before I buy it. If I have to wait two years.. it will be tough but I might be able to last. Thanks again for the insight

Based on the following chart I assume you mean the LT Trailboss correct? Since it doesn't appear the Custom Trailboss comes with an 8 speed. In my case I probably won't consider any of the high priced models (LT TB, LTZ, and High Country). I do not want leather seats which I believe takes the RST off the table (at least I think they are standard with leather seats unless I am mistaken). Since the WT, Custom, and Custom Trailboss aren't offered with 8 speed transmissions I believe the LT would be the best choice for me. I think in my case I will have to look for an 2wd LT (all-star edition for g80) w/ the 5.3L V8 or the Diesel and in your opinion either with 3.23 should be fine if I wanted to put 35" tires and a lift or just get the Max towing option and have the 3.42? Thanks for your advice.

Which transmission and axle ratio should I get if I want to lift it and put 35" tires on it (without changing the axle ratio)? I'm assuming these calculations are with standard tire sizes. Thanks