century custom 96 ? im gonna get it flushed and id like to know what is the best tranny treatment to add with the new fluid? its starting to shift a little hard. It also has a knock when i start it up but it seems to go away once it warms up good! Anyone have any suggestions for either of these things?? I think im gonna get the oil changed along with the flush and id like to add something in with the motor oil as well!!
what is the best automatic transmission fluid treatment stuff to put in my buick
- Thread starter Jordan
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