What Belts Do I Need?

[bordin34]

I am replacing the belts on my Charger and have no idea what to get. I have a 73 Charger with a 400 (M-Code), A/C, and PS. Looking on Rock Auto it says things about an Air Pump and the Leece Neville Alt.  What is a Leece Neville Alt. I was once told at the parts store I have a Leeve Neville alt based on some part I bought so assuming I do I think I need.
Gates 7508 for the fan and PS
Gates 7650 for the A/C and Alt
Thanks

[A383Wing]

why don't you just go to local auto part store like NAPA, Schucks, or Auto Zone and pick them up there?

[bordin34]

I went to the parts store and bought some belts, one was wrong. So in case anybody was wondering you need
Gates 7508 for PS and fan
Gates 7580 for A/C and alt x2

[FLG]

The leece neville was the big 100amp badboy. I have it in mine...one big alt 

[bordin34]

And I do not have the Leece Neville Alt.