Not sure what's going on, but when I put my 92 R/T in D, it only works in second gear. Sluggish off the line, and about 3500 rpm at 50 mph. Changed fuild and filter with 0 improvements. Any ideas? Before I change the transmission out, I'd like to make sure I didn't miss anything. I heard there's some sort of sensors that go to transmission that can be replaced. Thanks for any info.