4th gear whines pretty loud

thanks for your reply daliant. I had the cover off this tranny and inspected everything I could see inside and it all looked good. So hopefully your best case is right and its jst the bearings. I'm gonna look up countershaft bearings and see how hard it looks to replace. Luckily I can go 60mph in 3rd gear at about 2300rpm, so I'm not tooo handicapped