The 57 Ranchero has a Trico wiper motor on it currently and it’s got issues. Can these be repaired? And suggestions what to do with it? Trying to keep this car original.
The one you have runs on vacuum from the engine???
The internal seals dry out. Here's a photo from a 'not a Ranchero'.
If you can get some brake fluid run thru the insides it helps rejuvenate the seals.