Hey all, I just had the truck in the shop and had the transmission serviced (fluid/filter). It’s an ’88K5/350 TBI/TH700-R4. It's been a few weeks and now it started making a very slight whining noise, kind of like what a power steering pump makes when it's low on fluid, but nowhere near as loud. I checked the tranny fluid and it's definitely overfilled. Would this cause the whining noise I’m hearing, and could this have caused any damage? I’m going to dump the excess fluid in the morning, but I’m concerned that this overfilling may have messed something up. Thanks!