Weight and expense are the main reasons. It's one thing to weld up a box section, it's another to seal it to hold a fluid. And you can't plug up all the holes because they are there so you can access fasteners, run wires, shifters, etc. -- Mike -------------- Original message from "Matt" : -------------- > Dave, you mentioned this in my post too. MY question is, how comes > we can be clever and fill our whole CV boots with grease, but no one > has ever thought to fill the inside of the frame with say...motor > oil? phosphoric acid? NAVAL JELLY??? Would this work in > preserving the frame from the inside? The holes that would make it > leak could be sealed. At least in the box sections of the frame it > might be worthwhile, don't you think? Albeit, a little more weight. > > Matt > #1604 > 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/