ok im ordering my coils for my truck this week and i saw that the had a set of 2'' lift and a set of 4'' lift it says for primary suspenion system what ever that mean if i get the 4'' set will they go right in place or would i have to buy something else or another mod have to be done

 

I'm not sure about the 96's, but doubt you can just install a 4 inch lift coil.