fittings

Q: My ’72 C10 has a TH-700-R4 transmission. I want to run braided AN line to an aftermarket transmission cooler with -6 AN ports. What fittings will I need to adapt the braided line to the radiator and transmission? A: Your TH-700-R4, and most other GM transmission cases, accept 1/4-inch NPSM (National Pipe Straight Mechanical) fittings. Summit