[72 Cheyenne K20]

Hey guys, I have a wiper module that I purchased & restored for my 1980 Jimmy. Hooked it up and it doesn’t seem to want work correctly. I did some research & this one is not the correct wiper delay for a 1980. It has a part number stamped on the back of 459485.

Can anyone tell me what years this version is for & what it’s possibly worth?

Any help is greatly appreciated.

Thanks Scott