General questions from a new owner

i.ve had a set of coil over rear shocks for years as mine snaged real bad too. there maid as a unit not add on. if they are still made air shock will work to but ride hard. 8 3/4 are hard to find some time the 8 1/4 i have in mine works find but like the 8 3/4 the drive shaft will need changed. if i got i pic i will post