I replaced the leaf springs on my 94 pickup with a set froma 93. Recently bought an 88 Runner that had very mild rear sag and used and add a leaf from JC Whitney which leveled it out. If you are going to replace the springs you might want to throw the add a leaf in while the springs are out if you have some sag or carry heavy loads.

1994 Toyota Pickup 22RE, EB 268 cam , 2.25 LCE exhaust.
1988 Toyota 4Runner, mostly stock but hopefully not for long