Mark, I strongly recommend replacing all of the studs (both 7&10mm). We offer a complete exhaust kit with all stainless studs or you can buy them separately. If you don't change them all often times one or two studs will break soon after the job requiring you to do the whole thing over. It's just not worth the risk. Rob Grady P.J.Grady Inc. -----Original Message----- From: DMCForum@xxxxxxxxxxxxxxx [mailto:DMCForum@xxxxxxxxxxxxxxx] On Behalf Of DMCVIN6683 Sent: Wednesday, October 26, 2005 5:35 PM To: DMCForum@xxxxxxxxxxxxxxx Subject: [DMCForum] Exhaust Manifold Questions The studs that are on the heads that hold the exhaust manifold to it are all on my car except 1 has broken off. My question is after i remove and replace the 1 stud cant i just clean the threads on the old studs and leave them alone and reuse them? Do i really need to install new studs? Mark V Yahoo! Groups Links -- No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.1.361 / Virus Database: 267.12.5/148 - Release Date: 10/25/2005 -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.1.361 / Virus Database: 267.12.5/150 - Release Date: 10/27/2005 ------------------------ Yahoo! Groups Sponsor --------------------~--> Get fast access to your favorite Yahoo! Groups. Make Yahoo! your home page http://us.click.yahoo.com/dpRU5A/wUILAA/yQLSAA/HliolB/TM --------------------------------------------------------------------~-> Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/DMCForum/ <*> To unsubscribe from this group, send an email to: DMCForum-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/