It would work better if the heat exchanger (auto trans cooler) was in the HOT end tank of the radiator. The size of the heat exchanger is about the same as those hot shower heat exchangers you can add to the hoses of the heater circuit, so it should work..... as stated above a bit of trial and error experimentation is called for.
Jeep ZJ Grand Cherokee Limited 4.0L, 2 1/2" Coil Lift; Dana 30, ARB Air Locker, RCV Alloy CV's; Dana Super 35 with Trac-Loc and mechanical locker; Quadra Trac 1; 245/75x16LT.Also 1968 Land Rover S2a 109" Hard Top 2 door ex-military with a GM 202 cid, full Roof Basket and ladder, bonnet + rear door spare tyres, 7.50x16LT, twin fuel tanks, 3 x batteries, 240V inverter, 80W Solar, 220 Amp alternator, 40 gal. Water. Rough country expedition self sufficient camper.