DUST COVER FOR 727 TRANS,WHAT YEARS FIT MINE

My Dart is missing the dust cover/shield that bolts onto the bottom of the torqueflite in front of the torque converter. It was this way when I bought the car. It has a 360 with 727 torqueflite. Can someone tell me what years have the correct cover for my transmission or did the covers stay the same throughout the years? Also does anyone know what size the bolts are and how long so I can find them too? Thanks

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