Greg, Penetrating fluid would not hurt anything, but mother nature with dust and dirt will leach back in over the years. The switch is beveled so when it is tightened down it seats a little different than a normal bolt. You might want to put a 16mm crush washer of a soft copper to help seal the threads. Then you need to check and make sure the washer didn't change the light coming on by changing the depth of the switch. You might also want to use some electrical grease on the contacts. John Hervey www.specialTauto.com -----Original Message----- From: gjl463 [mailto:gjlednicky@xxxxxxxxxxx] Sent: Tuesday, January 11, 2005 11:06 AM To: dmcnews@xxxxxxxxxxxxxxx Subject: [DML] Replacing Reverse Light Switch Hi All, I'm in the process of replacing my reverse light switch on the transmission and had a couple of questions. I have never replaced this before so I'm looking for some tips. Mine seems to be rusted on there pretty good and I'm having difficulty getting it off. If I use a rust penetrator and let it sit for awhile would it hurt anything on the transmission? Also, there is a rubber boot that fits over the switch - mine is in good condition considering the age but should I also seal the boot with something else to prevent water from getting in? Thanks! Greg L. #6840 To address comments privately to the moderating team, please address: moderators@xxxxxxxxxxx For more info on the list, tech articles, cars for sale see www.dmcnews.com To search the archives or view files, log in at http://groups.yahoo.com/group/dmcnews Yahoo! Groups Links To address comments privately to the moderating team, please address: moderators@xxxxxxxxxxx For more info on the list, tech articles, cars for sale see www.dmcnews.com To search the archives or view files, log in at http://groups.yahoo.com/group/dmcnews Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/dmcnews/ <*> To unsubscribe from this group, send an email to: dmcnews-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/