my car just recently started making a thud sound, ill be in a gear dosent matter witch gear but a for example ill be in 4th gear (kinda high rpms) going around 40-50 cruising and if i let off gas then floor it for the first instant it will make a thud sound and what ever is making that sound goes all the way up to my shift **** and the shift **** will actually move alot

 

Do you have a short shifter by any chance?

It may be your shift linkage hitting your cat converter

 

check your rear motor mount, the one in my old integra ripped completely so i went ahead n bought the energy suspension motor mount insert kit and did the rear along with the front torque mounts and i noticed a pretty big improvement on launches as well as getting rid of the "thud" noise and shifter movement

**buy esmm insert kit

 

I am wanting to say check your motor mounts, sounds like one is going bad, either that, or a control arm bushing, had the same problem with mine, did the same stuff im tellin you to do, and it turned out to be the control arm bushing, fixed with an OEM one..... shoulda went with energy because i am about to replace it again

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by stockcivic103 &raquo;</TD></TR><TR><TD CLASS="quote">I am wanting to say check your motor mounts, sounds like one is going bad, either that, or a control arm bushing, had the same problem with mine, did the same stuff im tellin you to do, and it turned out to be the control arm bushing, fixed with an OEM one..... shoulda went with energy because i am about to replace it again</TD></TR></TABLE>

Quick question, did the LCA bushing cause ur shifter to move when playing with the throttle?