Hey all. I just finished a very mild build on my 97 2 door 4x4 tahoe's 350. Pretty much sbe, with all new top end. Anyways, it has 3.42 gearing in it now. I tried to pull a 14ft tandem axle open trailer empty, and it really struggled on the highway. I want to either go with 3.73s or 4.10's in both axles, but I can't make my mind up on what I want. I'm getting about 15 mpg combined give/take, so I wouldn't mind dropping 1-2 mpgs. I would also get rid of the stock "gov-bomb" and go with an aftermarket limited slip. I hate to waste 1k+ on gears and a limited slip unit, only to wish I'd have went with the other option. Anybody have any stories/reason why I should go with one or the other? It has plenty of power when it's not towing anything, but really struggles to stay in OD at 70 with an empty trailer (about 1900 rpms). I will getting the 4l60e rebuilt soon. I beat on this truck a little bit, but I mostly drive it respectable. I just wish it was more towing friendly.