The AOD (for automatic overdrive) is a four-speed automatic transmission with overdrive. Introduced in 1980, it was Ford’s first four-speed automatic overdrive transmission. The 4R70W stands for 4 gears, Rearwheeldrive, 70 stands for the 4th gear ratio, and Wide gear ratio. It has lower 1st and 2nd gear ratios for better take-off acceleration and improved gearset strength.
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The AOD was used originally on ’80s and early-’90s Ford, Lincoln, and Mercury products and in the F-series pickups and E-series vans as well. Because the AOD is basically a retooled C-4, many classic car owners have discovered they can substitute this overdrive transmission into their ’60s and ’70s production vehicles relatively easily and reap the benefits of a lower final gear ratio and decreased wear and tear on their vintage small-block V-8 engine. Theres more parts to take off of this but I will do that when the rebuild kit gets here, just to make sure I get the right parts.
Tags: aod, auto, Automatic, car, disassembly, ford, gears, intermediate, oil, piston, pump, Rebuild, repair, seal, transmission
awesome video 5 stars
i think you just notice the lint more with the red rags 5 *
great series enjoying it you are very well versed in those AOD tranny i had one in a 85 t-bird with the 5.0 not a bad tranny all in all i beat the hell out if mine and it was going when it was scrapped.
where are you getting your rebuild kits from?
Yeah the red ones leave little red fuzz balls everywhere, the blue ones i have are supposed to be “lint free”, so far I haven’t got blue balls yet lol
what do you clean all the parts with? clean tranny fluid??
Use brake cleaner then coat them in new trans fluid so they don’t rust.