A good solid bar. Not the chains. Stabilizer sway hitch will make a world of difference in the squat factor innthe rear end. I think my stabilizer hitch raised the rear about 3" compared to not having one. And keeps my truck and rig level. Now it does take some playing in a flat open parking lot to get the hitch setup. But man it makes worlds of difference in the tow.
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A lot of nice trucks here! I've got an 05' yukon XL Denali. So i recently just bought a 32' travel trailer camper. Was a spur of the moment thing. Was out and about with my flatbed tow truck and just decided to buy one.. Pulled good with the tow truck! Worried about the Yukon tho. Any recommendations on where to get some good bags for the rear end?
As far as bags on a 1500 the only option that you have is the helper bags that go in the coils which are 1,000# cap. The next option is a air ride rear and you replace the coils with heavy duty air bags. A couple companies make these kits. You are looking at around a grand in parts including auto level, tank, compressor and bags. It is not a terribly hard install.
Your best option for that HuGE of a wiggle wagon is to go with a 2500 XL or burban with the leaf spring rear and greater tow capacity frame. You are also able to add 5k helper bags for a couple hundred on a manual fill setup of 6-800 area with compressor.