where's the best instructions for replacing belt?

This is the best I could come up with. When 2 PK numbers are offered, i would suggest maybe going with the small of the 2 numbers. I will order a 6PK1800 for my car and give this theory a shot. 900 model 94-98 Stock: 49 04 728 aka 6PK2635 Short Belt (bypass middle idler) 49 61 066 aka 6PK2455...