More TransmissionQ

[raychevy]

If I change the filter and fluid then there will be an equal amount of dirty fluid left in the converter. I called a shop, and he wants 130 to 140 to flush all the fluid, change the filter, and for gasket, and labor. He said he just disconnects it from the radiator with the engine running so that it drains, and he pours new in the tube until it comes out clean. Is that a smart move ? If so ill save the money and do it myself. Should I change the filter and fluid, then flush it like aboove, or flush it like above, then change the filter and gasket ? I wonder what the odds of breaking it will be.