I installed some 10 inch long 275 lb 2 5/8" ID Afco chrome plated springs today. Here's the new springs next to one of the old ones. I decided on the 275 ones because my testing showed that the original ones were around 225 lbs. I took out one of my 5/8" lift spacers on each side because another member had reported 2" lift just from the 275 lb springs. I only have a 3/4" spacer now but I ended up with 1/2" higher than before. Because the new springs are .200" smaller in diameter I also got a little bonus because I had a slight tire rub at extreme travel before. The ride only seems to be a little stiffer but the true test will be if need to put the snow plow on.