Headlights 1979 -- Round or retangular?
I am at the point in my 1979 crew cab build where I need to order a new grill, shell and head light buckets. Looking at Dennis Carpenters' catalog I can order either round headlight or rectangular head light parts.
Esthetically I prefer the round headlights but friends have told me that the rectangular type are more modern and produce a better light pattern with higher wattage. They even said that it may be hard to find bulbs for the round lights.
Is this true?
Is it better to go with the rectangular lights for better night visibility?
I do alot of night driving and want the best lights I can get and only want to buy parts once....
Thanks!
Round 12V headlamp bulb was used on every US vehicle with single headlamps from 1952 thru at least 1980.
FoMoCo vehicles 12V bulb w/single round headlamps: 1956 thru at least 1998.
Esthetically I prefer the round headlights but friends have told me that the rectangular type are more modern and produce a better light pattern with higher wattage. They even said that it may be hard to find bulbs for the round lights. Is this true?
Is it better to go with the rectangular lights for better night visibility? I do alot of night driving and want the best lights I can get and only want to buy parts once....
Rounds are more "classic", IMO.
I suggest lenses by Hella or Bosch like these:
Bosch, $45 each at BusDepot.com - VW Bus / Camper / Vanagon / EuroVan Specialists

Hella, $40 each at Hella H4 Headlamp Replacement - 7" Round:
The Internet.
I got sealed beam silver star headlights right off the shelf at my local parts store for my '77 grill. My lights are brighter than my wife's '01 Olds Aurora.
To say square lights illuminate the road better than round lights is absolutely asinine! Just put in whatever one you feel like looking at when you walk past the front of the truck.
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PapaBearYuma
79 F350 460 C6 4x2
78 F150 351M C6 4x4
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I was thinking the front core support has either square or roundholes where the lights attach?
Ford Trucks for Ford Truck Enthusiasts
trucks, square (rectangular) headlamps came in 1979
trucks.1978/79 F100/350 & Bronco with rectangular headlamps: The core support is dished inwards behind the headlamp buckets.
The rectangular headlamp buckets are longer than the round buckets, so it was necessary to change the core support in 1978, so the lamps would fit correctly.
Round headlamps used the same core support from 1973 thru 1979. But, most 1979's have rectangular headlamps.
Round headlamps were usually only used on 1979's that were sold as "fleet" vehicles. Most of these were "stripper" F100/150 Custom Flareside pickups sold to the gov't, construction and utility companies and etc.
I think if you change to 78 round style you simple have to re drill a couple of holes to mount the different buckets.
Its about what ever style YOU like round or square, I vote for square. Unless you are going to put 2 PIAA's on a factory push bar, then round across the whole front end is great looking IMO.
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PapaBearYuma
Yeah my friends statement about not being able to find the round lights didn't ring true to me. Thats whay I asked here.
My truck is very much a mix and match build. The frame and cab is a 79, the engine and tranny are from 76. The core support is supposed to be from a 79 but it doesn't match the other 79 ive seen.. Its bassically solid except for the radiator cut out and two round holes for wiring looms behind where each light goes.
Looking at other trucks locally it seems like either the square lights or round lights should fit into a 79 grill shell assuming you use the correct buckets.
The grill outer shell im planning to use is DC part number "d8tz-8200-a" with grill "d8tz 8150 c" and head light bucket "d8tz 13008 a" and headlight door "d8tz 13064".
Eventually i'd like to build a front bumper and mount additional driving lights.But thats a long way down the path. Im just doing body work and fitting panels for the first time right now. I figure it will be all winter before I can get the major components in for the final time.
I really like the look of the older round lights and from this thread it doesn't seem like there is any compromise on illumination. I think I'll go that route.
Thanks!
The grill outer shell I'm planning to use is (DC is using the original FORD part numbers) D8TZ-8200-A
With grill insert D8TZ-8150-C (Plastic) Chrome and painted Light Argent.
Head light bucket D8TZ-13008-A
RIGHT side only ROUND Headlamp ASSEMBLY, not the bucket only. Headlight door D8TZ-13064-A
RIGHT side only ROUND headlamp door.
(sigh) What in the world are you planning to order?You better verify FIRST what you are buying, or you'll buy the WRONG fracatta parts!
D8TZ-13008-C is the RIGHT complete Rectanglar Headlamp Assy: 1978/79 F100/350 & Bronco.
D8TZ-13008-D is the LEFT complete Rectangular Headlamp Assy: 1978/79 F100/350 & Bronco
2) D8BZ-13118-A .. R/L Rectangular Headlamp Bucket only.
Applications: 1978/79 F100/350 & Bronco / 1978/80 Granada/Monarch / 1978/83 Fairmont/Zephyr with single headlamps / 1978/91 Econoline / 1979/80 Pinto/Bobcat.
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D8TZ-13064-E .. RIGHT Rectangular Headlamp Door-Chrome Plastic: 1978/79 F100/350 & Bronco.
D8TZ-13064-F .. LEFT Rectangular Headlamp Door-Chrome Plastic: 1978/79 F100/350 & Bronco.





You better verify FIRST what you are buying, or you'll buy the WRONG fracatta parts!
D8TZ-13008-C is the RIGHT complete Rectanglar
Headlamp Assy: 1978/79 F100/350 & Bronco.D8TZ-13008-D is the LEFT complete Rectangular
Headlamp Assy: 1978/79 F100/350 & Bronco2) D8BZ-13118-A .. R/L Rectangular
Headlamp Bucket only. Applications: 1978/79 F100/350 & Bronco / 1978/80 Granada/Monarch / 1978/83 Fairmont/Zephyr with single headlamps / 1978/91 Econoline / 1979/80 Pinto/Bobcat.
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D8TZ-13064-E .. RIGHT Rectangular
Headlamp Door-Chrome Plastic: 1978/79 F100/350 & Bronco.D8TZ-13064-F .. LEFT Rectangular
Headlamp Door-Chrome Plastic: 1978/79 F100/350 & Bronco.











