You are spekaing of ride quailty.
Get the ICON 4.5 Hanger kit It will give a much better ride and with no reduction in weight capacity.
In the rear install 5" ICON rear leafs and firestone air bags to level for towin. That gets you a much softer ride than stock unloaded yet still do not have issue with squatting with the air bags with heavy payloads or towing.
Add a set of single traction bars that are long and install roughly in line with the drive shaft angle.
Get the proper ICON or Blisten shocks.
Run 35x12.5018-20 tires pn 18-20x10" rims
Dual steering stabilzers or better yet hydro ram assist steering for the best turning and control.
But I defer to the real suspension experts such as OBSWIZ etc...
Make sure you get a proper 4 wheel alignment wit specs set to idea not just in the range and steering wheel straght.
Set your tire pressure based on the tires manf recomendtions for the load weight on each axle seperately.
Go to EBC pads and rotors Or in addition if you have the $$$ add the SSBC 8 piston calipers for the best stopping force with stock sized rotors/brake system.
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