These things pull like mad, even with tall gears, if your truck has the stock 18's, the tires are shorter, making gearing even stronger than with 20's. 17's even better.

 

I just drive with traffic Bruce. My wife always says that I drive exactly the same as I do without the RV behind me which I guess is not the norm... It's actually funny to count how many morons come flying up on my right because they can't see in front of me and think something this big can't possibly be going as fast as possible. Then they have to slam on their brakes when they see the cars right in front of me and don't have a place to cut in and cut me off... The only time I get over is if the right lane is empty or the left lane is doing well over 80 and folks want to pass.

 

I remember passing a guy with a Duramax pulling an Arctic Cat trailer that was already going pretty fast. We passed him going faster mainly because he was pulling kitty's, driving a dirtymax, and we could. People always give me crap about how fast I drive. It's funny how I maintain my equipment all the time and it's in working order or I don't leave until it is ready. Most guys that give me crap don't even check tire pressure or that their brakes work, let alone are in good shape.

 

OP, the difference in gears is only 5%, which I doubt you could notice. With 6 gears and a VVT rear end gearing isn't as critical as before. Where are you located? flat or mountains?
I run 37s which is a 15% increase in gearing and it pulls about the same, interestingly....

 

H&S tuning makes the tranny waaaay better for sure!!

I don't even use the tow/haul feature. It's not needed now.

 

To the OP -

I have 3.55s with 35" mud tires and 4.5" lift. I drag 15-16k behind me like it's not there.

5er weighs in around 14-15k and it's easy to forget it's back there.

Once you pull with the new truck you'll be so happy the gear change will no longer matter.

I still would use this to your benefit while negotiating with the seller. Never hurts to ask for a better deal since it's not exactly what you want!

 

I hate people that drive slow in the middle or left lanes! Iowa actually passed a new law called "slow poke". Which in short if you get caught in middle or left lane going under the speed limit you can be ticketed!

I doubt it will be enforced much but it's a step in the right direction either way.

I understand not everyone does 15 over but some people shouldn't be allowed to drive!! Bias opion here as I'm one of the people going 15 over....