Originally Posted By: RPMster
Has your original automatic transmission gotten to 200,000+ miles without a rebuild, on all original components? Tell us about it:
- year / make / model
- number of miles driven so far
- fluid / filter change interval
- ATF used
- any other details you'd like to share
I've had several.
My 66 Dodge Polara (A-727 trans) made it to about 250,000 before an internal piston seal failed from hardening. No other damage inside, but rebuilt it anyway.
ATF- a mixed bag of Dexrons as top-off (very little fluid, as far as I know) up until I got the car with 180k on it, then M1 ATF from then on. When I changed the fluid at 180 that was probably the first time, and I changed it twice before the seal cracked
My 73 Satellite (A-904 trans) was pretty much the same story as above, except that the front clutch pack wore down to nothing at ~210k miles. It had gotten antifreeze in it years before that when the radiator cooler failed, and I think that wore the internals quite a bit.
Dad's 92 Dodge Dakota (A518 transmission) is out there still running on its factory fill. Dad sold the truck with >212k miles on the clock. It had a fluid leak around the input shaft so it got a pint every few months for the last years he owned it. Whatever brand of ATF+3 and then later ATF+4 was available.