New Aftermarket Stock fits 12 ga Ithaca 37.  May require minor fitting..

ITHACA® 37 STK, ZZ It is your responsibility to confirm the dimensions of your firearm with the supplied dimensions of our part. Top Tang Width: N/A Top Tang Length: N/A Bottom Tang Width: 1/2" Bottom Tang Length: 5/8" Stock Height at Receiver: 2 5/16" Stock Width at Receiver: 1 3/8" Overall Length of Stock:13 13/16" Measurement of Receiver Mounting Bolt: 5 1/4"