Yes, but and here's something I assumed a little earlier. Only one of the newer fittings fits into the older trans. The other one has to be adapted somehow. Because the tapped sizes on the older trans aren't the same.

Cooler Line Fitting into Case (97- early 99) 1/4-18 NPSF 28
Cooler Line Fitting into Case (mid 99- 03) Feed 3/8-18 NPSF
Return 1/4-18 NPSF
Cooler Line Fitting into Case ( 04+ ) 9/16-18 UNF

Info from TEP website. There appears to be a potential to put the fitting into the wrong place. IIRC and this is off the hip, so please get confirmation, I believe the check ball fitting is on the feed side of the trans which is the fitting that points straight down.