And here's what these home made fittings look like after they've been cleaned up. Both picks show the larger GM tranny line installed. The small end is the 1/8" pipe fitting that screws into a 904 and into my '69 Barracuda radiator. For some reason the original Mopar fittings (1/8" pipe) had very small through holes which restrict flow. The male to male 1/8" pipe fittings I bought have much larger through holes (about 15 percent larger)...that's a lot when it comes to tranny oil flow. And I'm seriously thinking about increasing the 1/8" pipe through hole to the full size of the 5/16 GM trans lines (.252" ID). I would only have to enlarge the hole .015" more which should not effect the strength of the fitting but it would give me another 15-18 percent increase in flow. I know, I know...too many details, but who would have known the that Mopar fittings were so restrictive to flow???
For all you members who install larger tranny lines and trans coolers to help the tranny stay cool are working against the laws of physics if you don't install 1/8" pipe fittings with larger through holes. No matter how large your tranny lines are the front pump still has to force all the fluid through a tiny hole in the 1/8" fitting (.220") at the transmission and at the radiator. The technical term for the stock fitting is known as a "restriction".
treblig