i bought 2 used lift coils for my xj , the guy thought it was a 4.5 inch lift, but they look bigger like a 6 inch lift, they measure 22 inch tall uncompressed anyone know the lenght diff between a 4.5 inch lift and a 6 inch?

 

my 3" lift coils are 19 inches uncompressed, so i think they may be 4.5 inch lift coils. hope this helps ya out.
and you really cant go by length because of compression ratio.