Rich - Since nobody else has chimed in on this question, I'll give it a shot. When a bolt is "slathered with anti-seize compound", you can consider it a lubricated bolt. That means that you will get more stretch on the bolt for the same amount of torque as compared to torqueing up a dry bolt. A ballpark estimate for the difference in this case would be that the "effective torque" on the TAB could be as high as 90 ft-lbs, assuming that he torqued the lubed bolt to 55 ft-lbs indicated on the wrench. Many anti-sieze compounds don't have quite the lubricity as grease, so it may be a bit lower. This estimate comes from charts in my aerospace design manual. Using some of those icky engineering formulas, that 90 ft-lb torque would apply about 24,000 pound tensile load to the bolt. In side-by-side tensile testing of the TOBY-TAB to the stock bolt, the stock bolt began to yield at about 22,000 pounds (I can send you the charts if you want them). That means that your new bolt could be pretty close to yielding. I won't go so far as to say that it is yielded, but you're definitely up there in range of the top of the curve. The other concern in this case are the steel sleeves through the bushing and the trailing arm. The compressive stresses on the edges of the sleeves are very high (lots of pounds, but very few square inches of area = high PSI). I think that high compressive stresses on the sleeves are better than a loose joint caused by a yielded bolt, so I would back it off to about 45 ft-lbs to get the bolt down below it's yield point. I am using some conservatism in my numbers, so I think that would be fine. Let me know if you have any questions about this. Toby Peterson VIN 2248 "Winged1" DeLorean Parts Northwest, LLC www.delorean-parts.com -- In dmcnews@xxxxxxxxxxxxxxx, "cruznmd" <racuti1@xxxx> wrote: > In response to Dave T's last post regarding proper TAB procedures, > I'd like to say that > > A) I made sure the mechanic knew to torque down with the full weight on the suspension. He did this correctly. > B) Heat was only applied to the trailing arm when it was out of the vehicle. The bushing was not heated. > C) The one thing he did that concerned me, was slather everything in anti-sieze. > > How far off are the torque readings if you apply anti-sieze? How > concerned should I be? 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/