Brandt, My guess is that your exhaust pipe is too close to something else underneath the car. Check you clearance between the pipes and tranny, crossmembers, driveshaft, shocks, gas tank, etc. My rule-of-thumb is if I can put a finger between the pipes and other surfaces, it's good to go. If not, when you "get on it" the flex of the driveline could close a gap and cause a vibration or rattle. Mark Souders 300H Mohrsville, PA -----Original Message----- From: Brandt Jimerson <brandt300g@xxxxxxxxx> To: Chrysler300@xxxxxxxxxxxxxxx Sent: Tue, Oct 26, 2010 12:59 am Subject: [Chrysler300] G vibration/grinding noise in rear Hello to all in 300sville! ell, I finish brakes (doing them myself...successfully), then get the posi in ear (thanks Jeff, successful) except one wheel drags a little on full cceleration when first taking off, going around a corner. Is that normal!? . And now folks, the latest problem! Melissa is vibrating intermittenly (ugh), hen in both (D) drive and (N) nuetral and it sounds like it is coming from the ear. However, I'll bet my trans and/or engine mounts are gone and the engine unning is vibrating metal to metal and 'shooting the sound back to the rear'! I ad her make the noise again this time in nuetral so I set the parking brake, ent down along ground and listened, crawled along rear right around corner to assenger side where the rattling, clanking seemed more apparent in noise around he tranny/engine area. Is my theory perhaps correct here? Suggestions? Thanks ons in advane!! incerely & 300ly, Brandt H J w/ a G. [Non-text portions of this message have been removed] ------------------------------------ To send a message to this group, send an email to: hrysler300@xxxxxxxxxxxxxxx To unsubscribe from this group, send an email to bob@xxxxxxxxxxxxx or o to http://autos.groups.yahoo.com/group/Chrysler300/join and select the "Leave roup" button For list server instructions, go to http://www.chrysler300club.com/yahoolist/inst.htm For archives go to http://www.forwardlook.net/300-archive/search.htm#querylangYahoo! roups Links Individual Email | Traditional http://docs.yahoo.com/info/terms/ [Non-text portions of this message have been removed] ------------------------------------ To send a message to this group, send an email to: Chrysler300@xxxxxxxxxxxxxxx To unsubscribe from this group, send an email to bob@xxxxxxxxxxxxx or go to http://autos.groups.yahoo.com/group/Chrysler300/join and select the "Leave Group" button For list server instructions, go to http://www.chrysler300club.com/yahoolist/inst.htm For archives go to http://www.forwardlook.net/300-archive/search.htm#querylangYahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Chrysler300/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/Chrysler300/join (Yahoo! ID required) <*> To change settings via email: Chrysler300-digest@xxxxxxxxxxxxxxx Chrysler300-fullfeatured@xxxxxxxxxxxxxxx <*> To unsubscribe from this group, send an email to: Chrysler300-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/