going from stock to -6an lines

got a 4l80e swapped into a 1997 chevy truck got a leaky union where the local tranny shop fixed a crack in the line years ago and i want to just replace all the lines with new stuff.

found these transmission fittings on ebay
http://compare.ebay.com/like/2307913...Types&var=sbar

and this one for my radiator
http://www.summitracing.com/parts/fra-582206

but i dont know which one to get for the stock external cooler does anyone know which size the 97-98 trucks used?

here is a picture from when i was putting it all back together if that helps lol

http://img.photobucket.com/albums/v1...ps53515802.jpg