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View Full Version : Tranny Making Thumping Sound


lee92579
08-05-2004, 02:29 PM
I Own A 1991 Tristar. I Just Installed A Rebuilt 454. When I Put The Engine Into Gear I Hear A Thumping In The Lower Gear At The Back Of The tranny Where The Shaft Inserts. i dont know much about velvet drive transmissions, but is it possible a barring could have siezed up in there if the boat hadnt been used in a year?