2004, so a GMT800, which means the factory receiver is a POS...as a min, if the
previous owner hasn't, change it out for a tradition design after market receiver
About $200 bucks and about 1 hours labor.
You'll notice the difference when you lay them side by side
As others say, depends on a few things on the truck and what you load
Some have MPG diff ratios and is NOT good for towing. Especially on a half ton
towing heavy
A dry 4,690 trailer will normally end up hundreds to over a thousand lbs more
Key will be the tongue weight and orientation. Meaning the tongue weight should
be +12% of the actual weight. Meaning the orientation, or levelness of the tongue
on level ground, should be pointing level at it's highest pointing...to slightly
down (my preference and solves many folks sway problems)
If your automatic has the Tow/Haul button, use it whenever anything is hooked up
I like the P2/P3 brake controller and when setup right, will lead the trailer
brakes to stop/slow it down as 'one'
Hope it is not lifted, nor over sized tires. Both works against towing heavy
Make sure the tires are aire up to the max sidewall PSI. Assuming OEM sized
tires.