Used 3/8 tube, and added a trans cooler thermostat. Not running the 42RH into the stock radiator. Used some nice hard lines I got from a 1999 B350 church bus in the junky. Added -6 AN fittings to the front, and flex lines. Cooler thermostat bracket is homemade. Everything in mockup stage in pix. Finished up the welding work, sand blasted and primed engine compartment yesterday
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