Hi all sorry to rant but my friend ordered a lift kit (full springs 4", shocks, steering arm u bolts for $539 shipped)from 4wheel parts the other day. Told them everything that he needed for his 83 3/4 ton suburban. anyways he specified that he needed the 56 inch long springs. Anyways friday we recieved it and every thing looked good fast shipping well packed untill we measured to make sure the springs were correct! They sent us 52" springs for a 2.5" lift . Anyways he called them and told them they sent the wrong springs, they told him that he was incorrect and those are the springs that are supposed to be on his suburban so after about 1/2 hour of arguing with the guy my friend finally asked to speak with a manager. The manager started saying the same basic thing, and finally he asked us to go out and measure the spring pearches , we did showing them being 58 something inches apart. He said that the shackle is supposed to be angled forward some So we asked him so are they supposed to be angled all the way forward which is basically what would happen mounting a 52" spring where a 56" is supposed to be. Finally I found the part # for the correct spring on summitracing.com. Gave them the part and the guy said "sorry we were looking at the 1/2 ton stuff. Anyways they are sending out the correct springs and paying for shipping the wrong springs back and the new ones. Hopefully after all this they will send the right ones. Just had to share. Oh yea, the manager tried passing blame on to my friend for ordering the wrong kit, telling him that he should have specified 3/4 ton suburban! Funny thing is the invoice says 84 3/4 ton suburban with 56" rear springs!