Thank you for responding, do you have a recommendation to send motor for rebuildThe best way is to send out your Wiper Motor to be rebuilt. There are some places out there that guarantee them for life and they come back like brand new. If you don't have one and need a Core, I have some available.
Looking at your photos your advertised motor is a rare 1965 only. In 1966 the wiring was located in the upper body. Chevrolet models had a double connecter due to the way power was supplied. The other GM big bodies had power supplied at the wiper switch. I have some info for bench testing these motors:Danny at Southeast Chevy Parts sells remanufactured motors and service is great:
This is a 2 SPEED motor FOR 1966 CHEVROLET It may be correct for 1965-1967 Chevy Chevelle, Pontiac GTO, Olds f85, and Buick a -body. We make every effort to list the applications for the item listed but we are human after all.www.ebay.com