97 FZJ80 with 360k miles, rebuilt engine 6 months ago. Slowly working through all the issues on the truck. Getting a terrible noise at highway speeds when it kicks down a gear when I get on the throttle. Anyone experience this before? If I baby it and dont force it to kick down it never makes the noise. It sounds like an exhaust shield or something rattling (or bearing inside the transmission?) and it only happens during/ right before the transmission downshifts. In the videos I am sort of working the throttle to make the noise last longer so that I could record it, during normal operation the noise happens quickly and stops once the transmission gets into the lower gear.
So to any automatic transmission experts, what does this sound like to you? Should I start shopping for another transmission?
Thanks
So to any automatic transmission experts, what does this sound like to you? Should I start shopping for another transmission?
Thanks