David, would a maladjusted vacuum modulator or low line pressure cause a symptom like this: Car drives normally. GC was rebuilt and all shift points are correct. Fluid level is correct. Trans kicks down with rapid acceleration during driving (passing gear) as it should. However, once in a very great while, when accelerating away from a stop a tad quicker than normal the trans will kind of slip for a half second then seemingly "clunk" into first gear and pull away and shift normally from then on out. If one accelerates away from a stop lightly (i.e., not a 'jackrabbit' start) Trans starts in first and shift normally. no clunk, no slip. On warmer days, the slip/clunk never happens. Ideas? -sean --- In dmcnews@xxxxxxxxxxxxxxx, "David Teitelbaum" <jtrealty@xxxx> wrote: > If it was shifting "very clunky" it must have been that the vacuum > modulater was not working and the line pressure was not correctly > adjusted. Even so it is a stretch to conclude that was the cause of > the shaft failing. Maybe the shaft was not handled properly at some > point before it was ever installed or maybe it was not made or > heat-treated properly. You are lucky you got someone that was able to > diagnose the problem correctly. Most of the time they do a complete > autopsy and in the course of a total rebuild they find and fix the > problems. > David Teitelbaum > vin 10757 > 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/