relay wiring question

On Bagginit.com they say to run the number 86 on the relay to the ground and the 85 to the pressure switch. On Airridetalk.com they say the opposite. Does it matter which way it is wired? I am about to rewire everything on this truck so i am sure i will have a few more questions. but this will kick it off. Thanks in advance.

85 and 86 are interchangeable...they just energize a magnetic coild....but the 87 87a and 30 should be wired in certain way.

thanks man, that is what i needed to know.