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Old 03-04-2013, 05:44 PM
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1972 Chrysler Newport tranny fluids question

I just bought a bad *** 72 newport, mostly stock, and drove it home. Going to get started on all the filter/fluid changes, but I have no idea which tranny fluid to use. Ive read type F is used alot, but doesnt lubricate the front clutches very well and can cause premature wear. but alot of guys didnt agree. I also read that although more expensive, TCI Max Shift RTF, Mopar ATF+4, and Amsoil work the best. It's not a racer, just a stock 400cid and will be a daily driver. What do you guys think/suggest?

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Old 03-04-2013, 06:06 PM
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Dont use type F.
Dexron III or Dexron II or type A is what an old chrysler like that takes.
You wont find Type A so its dexron II or III.
Dont use synthetic in that old thing, it might kill it.
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Old 03-04-2013, 11:56 PM
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I have been reading, and the newer A+3 and +4 are only recommended for newer 727's. One thing the allpar site mentioned is that they are synthetic, like you said. From other chat boards Ive read that the +3 & +4 work great in older 727's, but there is a big argument that since they are synthetic, an older tranny will get leaking problems in gasket and seals. Maybe a freshly rebuilt 727 could handle them better? anyways, because I have no idea what kind of mileage or abuse mine has seen, I will probably use the dextron II.. and I just remembered the car came with the original owners manual so Im going to check that out too. BTW, if the newest dextron VI is ok to use in place of dextron III, would it be better in my tranny or should I stick to II or III?
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Old 03-05-2013, 01:58 AM
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manual says "use only dextron"
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