GMC Sierra 2027 Automatic Gasoline Airbags that were installed on a GMC Sierra 24, lightly used, three layers. They can lift 3 tons. I used them for towing a caravan. After loading your items in the trunk and lowering the vehicle, they lift it up. The vehicle returns to its normal level before loading and lifts more if you wish. I installed them in Riyadh. They fit GMC, Chassis, and Hilux. All accessories included: airbags, air compressor, air hoses, and electrical wires. I bought them with installation for 3500. Selling to the highest bidder.