Best Gear Choice

[dcschneider]

I have a 2003 chev silverado 2 wheel drive with the 5.3L vortec engine. I am towing a 6500 holiday trailer. I have increased the size of my wheels to 265 70R 17 and now it doesn't like to pull at 60 mph even in 3rd, it likes to shift down thnen up. I know I'm pushing it a bit for this truck but would new rear gears help? Or what mods can be done for around 2k to help it out.

[Majorleaguebass]

4.10's will make a hell of a difference

[Stevens03]

4.10's a good choice, and what i had in my old 03 pulling that same weight every weekend with a camper.

 

Steven

[dcschneider]

Thx Guys. I appreciate the help, now off to find some gears. Now what would you suggest to do first for mods. I'd like to speand a couple thousand dollars on it.