need help
ok its a 2006 impala with the 3.9L v6. it has the police package and only 64xxx miles.
when it shifts it has been shifting really hard.
and other times it feels like the converter is staying locked cause it will rev (while still moving so not exactly slipping) then all of a sudden the transmission will grab. sometimes it even squeals the tires.
i just changed the fluid and filter and used dex.6 when i did. (what it calls for)
thanks in advance

