There should be a rating tag on the stand. It should indicate the weight/load limit per stand or per pair. 3 tons per stand would support 12.tons per four (on level ground). 3 tons per pair would support 6 tons - 12,000 lbs.
Either rating would allow safe use with your truck on solid, level ground.
I am not near my shop, so I cannot check the labels on my 3 ton and 6 ton HF stands. I use the 6 ton stands on my 2-ton GMC COE that has a 18 foot flat bed and dual rear wheels.
added later:
HF 3-ton = 6000 lbs evenly distributed over 2 stands (12,000 lbs evenly distributed over 4 stands).
Last edited by tclederman; 01/01/2015 5:04 PM. Reason: added HF rating
