you'll need....
2 - -8an x 1/4" NPT for the ports on the trans.
2 - -8an male x female ( to come off the fittings in the trans )
2 - 4ft -8an lines
1 - 8ft -8an line ( to mount it where I did )
One of the lines off the stock cooler already has a coupling. Take it a part and the cooler side of that line has a male -8an. The other line off the stock cooler needs to be cut on the rubber hose part and have a -8an fitting pressed on to it.
You can buy a thermostat from Derale that goes inline but, I didn't want it cause it comes on at 180F. I rarely get the trans temp that high so I just installed a toggle. I try to keep it at least at 160F