[cobra427mnsi]

Boxhead

I'm not sure what you mean by "correct wiper operation". If you are referring to the sweep arc of the wipers (how far the wipers travel from side to side), I can only tell you of my experience. I bought a used set up from Bethina Garage (I think. It was 10 years ago so hard to remember). Much later, after installation, I noticed that the passenger side only travelled about half way across the windshield. By this time, I had had the dash installed and everything, so it was too late to change it . I know, I should have tested it before completing the dash, but I didn't. Anyway, I decided to redo some wiring and change the heater etc, so I had an opportunity to check out the wipers. It turns out that the wiper posts ( the part that sticks out from the body where the blades attach) had different diameter gears on them. I called Paula at Finish Line and she sent me the correct size. Now the wipers work the way they were supposed to in the first place.

Hope this helps.

Paul