The springs I used are EMCO, made in OK and are hard to find in stock anywhere. They are the 7 leaf, 4K springs, Lippert #132887, Standen spring #72-79, that replace the junk that came on the trailer and the set Lippert sent me to replace the originals. After the second set did the same as the first I took it upon myself to fix the problem and called EMCO who directed me to Dexter or Lippert and when it was all said and done, Lippert was the cheaper of the two but it did hurt giving those jokers the money. Yes, you can find the smaller weight springs at many places but not these heavy ones that the bigger 38'-40' filth wheels need unless things have changed a bit the last 6 months and more people are stocking them.
As far as the new springs raising the trailer an 11/2", we both really can't remember if the trailer was this tall or not when new. Ity could possibly be the trailer sagging a little at a time over 2 years and us not noticing it. The new height, if it is new, is not bad in any way at all.