The crew cab Silverados with the 5.3L engine and 3.42 rear axle tows 9600lbs when equipped with the heavy duty trailering package.So like I said, I'm currently vehicle-less and I've been looking at 2010-2013 crew cab z71 silverados (LTs) and sierras (SLEs). What I noticed is that with the new 6 speed tranny, they all have 3.42 rear axles except for the VMAXs. What happened to the 3.73s?? I don't know if I can bring myself to buy a 5.3L with 3.43s six-speed or not! HELP!!
The Voretc Max gives you 10700 lbs max towing.
Is there a particular reason you absolutely need 3.73 rear axle?
My 2008 Silverado had a 3.73 rear axle, but it only had the 4 speed automatic.
IMO, if I were going to tow more than 9000lbs on a regular basis, I would get a 2500HD, maybe with a Duramax.