So sometimes i notice in low rpms when i let off the gas it feels like i am hit in the the back. kinda hard to explain. It doesnt do it when the car shifts only at low. also if i punch it and at about 4k it let off and then punch it real quick i hear a big clunk noise. Could this be a broken mount? If so how might I be able to tell?
-Todd

Star Stage II, Greddy Type S, ADFX 3" DP, blah blah blah

yes, probably the front or rear motor mount (not the tranny mount), just get down there are look, its probably cracked right through the rubber spline

1998 dodge avenger 4 cyl AT
Mods are:
Not enough