I have a 2000 Sierra short step. I've installed a 2/4 lowering kit with 20 inch wheels but still want to tow with it. I will be installing a set of these Airlift load helper bags 1993-2008 Chevy / GMC Silverado/Sierra 1/2 Ton Pickup 2wd [w/ 2-4 Drop] - SlamAir Air Helper Springs [REAR] - 59103 | $228.68 and was planning to install the rear sway bar from a tahoe.

Will the helper bags function, under load or with light air pressure, the same as a rear sway bar? Or should I install both?

Thanks