What year buckets fit 73's
 

Im building a 73 with factory buckets,and they are severly shot.upto what years are they the same in the trucks and Blazers.also if anyone has any decent ones(needing recovered ok)dont need tracks.let me know how much.I have 69-72 style they seem very similar.any years have more cushion?this is going to be my wifes daily work rig.80 + miles a day.