[{tpc}]

I'd probably "try" the silverado, just so I know how it works, but if everything is setup for the Tahoe, you will likely need to be able to make adjustments to the hitch.

That said, you will benefit from a second friction sway bar on the other side, when pulling with the Tahoe, for that matter probably with the silverado as well.

Even with the longer wheelbase, I don't feel that is going to save you from being pushed around by the bigger trucks. Maybe with the second friction bar, but not just the wheelbase alone. Just a feeling though, as I have nothing to compare it to at this point in time.

For me, with my tahoe, pulling almost the same unit, the second friction bar was a big improvement. Enough for my wife to even comment on. I also have found that if safe, moving over a little in the lane away from the semi's that are passing (or that I am passing), is very helpful to negate some of the "pushing" effect.