Just joined the other day after checking out the site before I bought a 96 MarkVIII LSC and got some answers to some questions before I even thought to ask. After checking out the forums, I surmised you guys all have a better idea then me( and it's FREE) about this car. Anyway, I bought the car the other day for $950 due to the seller telling me there was a transmission problem and it wouldn't go past 35mph. On my way home thinking about this near mint piece of baltic blue machinery I bought with 100K miles, with the original window sticker price of $44,650 in the glove box, I began to think what would happen if I shut off the O/D? Afterall I couldn't get it to go past 35 either and I didn't really have anything to lose. So I did. WOW! low and behold I gave it a little gas and it took off like a jet. I hadn't felt that much power since a 76 cougar I had with a 460 4 barrel stuffed under the hood. After awhile I decided to go home to feed the dog. NOW comes the question, as I was backing up I heard a noise that kind of sounded like a chicken clucking( sorry that's the only way I can describe it) so I pulled forward a little and tried again and there was no noise. Later I took the car to the gas station to fill and backed up to the pump and there was still no noise. But, when I went to the store I was backing up and there it was AGAIN. Could it be something with the O/D? Has anyone heard of this before? and if so, any ideas as to what it may be? and how to fix it? My fiance now has competition for my affection and I'd love to show of this piece of art to everyone as soon as possible. Sorry for the long disertation, but I have a tendency to talk alot when I get going. Thanks for any help and I'm REALLY looking forward to summer here in Mass to show her off to the general populace and start frying a couple of import friends I have.