Dazed and Confused
Join Date: May 2012
Location: Upstate New York
Re: 1985 f150 whining in 1st and 2nd M/T
I can't find a decent drawing on the tranny, and I'm used to working on much bigger gears, but all gear assemblies where thrust is produced will have a thrust gear to keep from pushing the main shaft into the casing. Since the transmission works in both directions, it probably has one on either end. See if you get the same noise in reverse, I suspect that the rear thrust not be against its shoulder which will cause heavy stress on the gears when the thrust of the shaft is in that direction.