I appeal to the Bonneville fans for help. I have a 96 SSEi with well worn leather. Can anyone refer me to a vendor or supplier that manufactures replacement leathers? Your help would be most appreciated.

Most look in wrecking yards. Finding Bonneville leather seat covers "out of a box" not likely. But google is my best friend.

Check the for sale section. I know there'* a few bonnevilles being parted out.

at the gm dealership where i worked at we dealt with a place called mcgowan upolstery in pgh pa not sure if he ships out merchandise or not he uses good products

You could also try a place is think its called katz skinz but I don't know if there still in buisness or not but you could try them I know u can choose from different leathers swaides and other materials but check them out see what they can do and its a direct fit to ur seat