dodge guy wrote:
campigloo wrote:
Also keep in mind the only thing a trans flush flushes is your wallet. Just have a proper fluid and filter change
With regular fluid changes yes, that's all you need. If not that a trans flush will flush near 100% of the fluid out of the trans. When I do it at work I don't use any cleaners or additives. Just the correct fluid. Clean goes in and sold fluid comes out.
I have done full fluid changes in the past on our 1989 F250 460, with C6 trans. The cooler return line just dumped into the pan.
Took a bit of fluid, but once the pan and filter had been removed and replaced, you added enough to fill the pan. Then disconnect the return line with a big catch pan under it, start the engine, while helper ran the trans through the gears, you added fluid while watching the fluid coming out of the return line. When it changes from dark red to bright red stop the engine and reconnect the return line. Check the fluid level and top off.
I don't know if you can do that on current transmissions.