Maybe Chris or John will know the answer to this question: See my above old photo and notice the red flag on the left rear fender. Dad had told me this was a pre SMV type of thing they did. I was wondering about the fender warning blinkers - my parts books and manuals don't show them but was this a kit they put on later? Dad doesn't remember how that all transpired but the same tractor pictured here has one on that fender. I am presently rewiring a tractor and have repaired the fenders and am wavering wether to put on or leave off that warning light on top of the fender. It currently does have a blinker assembly tucked up under the inserts.