Tweet
I have a couple of NOS headlight retaining cups for the midyears. On one tab is and A on the other is a B. I know there were inner and outers but which side are these for? Any help much appreciated. john
-
-
Re: Headlight bulb cup Help
The cups were "indexed" for high and low beam sealed beam units. They are not side to side (left/right headlight) unique. They fit either side. if you look at them carefully you'll see indentations located at different positions. The mating headlight has corresponding tabs on the back that index the bulb for correct orientation and position. If you have any spare T-3 headlamps just try a "fit" to determine which letter corresponds with which position, high or low beam. Low beams were outboard while high beams were inboard -
Re: Headlight bulb cup Help
John-----
2 different protocols were used for designation of the headlamp RINGS (i.e the "cups" into which the sealed beams are mounted). The early protocol was "L-1", "L-2", "R-1", and "R-2". Later, they went to "A", "B", "C", and "D". All 4 rings are different.
Anyway, the "A" designation ring is used for the LEFT, OUTER position (i.e left side low beam). The "B" designation ring is for the RIGHT, INNER position (i.e. right side high beam).
Usually, the rings with the alpha-numeric designation will have a round hole on the rear side. This is the style that was originally used in PRODUCTION and available in SERVICE for 1958 through, at least, the early 70's. Thereafter, with the change to the single alpha character designation, the rear hole is usually seen as "squared-off circle".In Appreciation of John HinckleyComment
Comment