<<Anyone know the size the power steering low pressure return line? I'm planning to pickup a Magnefine filter but I'm not sure if it is a 3/8in or a 1/2in fittings.>> Bruce, The return line from the ps cooler is 3/8". I just replaced mine Sunday with bulk 3/8" line since it was discontinued by Ford! That filter is a good idea. John Gentry '93 ATX w/ mods