Back in the fall of 96, when I got mine new, I installed an inline, spin on filter for my transmission. I went to Tractor Supply, and bought a filter & housing made by Cross, and used on hydraulic systems. (about $20. 00 then) These are also used on hydraulic wood splitter return lines. It has big 3/4" in & out ports, a check valve, and a port for a temp sending unit. It filters down to 10 microns, and flows 20 gpm. I mounted it horizontally on the cross member behind the bumper, and spliced it into the hot side rubber line going into the cooler. I used 3/4" to 1/2" barb fittings, 3' of 1/2" transmission hose, & good, wide stainless hose clamps. Never had anything in the pan, & see temps in the 150-175 range at the filter housing. The same thing at a hot rod shop had little, restrictive 3/8" fittings, and was about 3 times higher.