hey fellas, whats the best tranny fluid for a hi mileage 700r4? about 130 on the odo but well kept and pristine.

If the fluid still looks good, then leave it alone. If it needs to be changed, I would use Mobil (not Mobil One), do a complete change, and put in a SP filtran filter (zero leak). If you cannot find the Mobil, use AC Delco.