For a summary of F-8 (F8U-1/2) Crusader configurations by suffix letter , see http://tailspintopics.blogspot.com/2009/10/f8u-crusader-variations.html
The F8U-1 (F-8A) did have a small radar that the gun sight used for automatic ranging but did not provide visual assistance to the pilot. It was armed with four 20 mm cannon and 2.75-inch rockets.
The rockets proved to be not only not effective except as an area suppression weapon due to inaccuracy but also downright dangerous. To maximize the number carried versus the frontal area of the pack, one set of 16 was loaded ahead of another. If a rocket in the forward set did not fire, the one behind it, when fired, might stay in the pack, still burning. Rockets occasionally did not clear the pack, which meant that it could not be retracted and could potentially keep one of the nose gear doors from opening, which meant the nose gear would not extend.
For various reasons, the Navy didn't shut off production of F8Us with the rocket pack for a while, resulting in the Controller General telling Congress in July 1964 that the Navy could have eliminated them and saved about $4 million in 1958 (about $31 million now) instead of having Vought build 306 F8Us with that capability.
Far more effective than the rocket pack, at least from an air-to-air standpoint, was the addition of heat-seeking Sidewinder missiles, first two, one on each side of the fuselage:
As a result, the two-Sidewinder pylon on the right was not a mirror image of the one on the left and no two missiles were oriented exactly the same:
Visual-assist radar was added to the F8U beginning with the F8U-1E (F-8B). However, it wasn't going to be much of an all-weather fighter if it wasn't armed with an all-weather missile. A radar-guided Sidewinder, the AIM-9C, was developed, qualified, and deployed. It was, however, subsequently withdrawn reportedly because its envelope was too restricted and it wasn't very reliable. (I don't know why the Sparrow III capability was never incorporated.)
The AIM-9C is on the upper rail and the 9D on the lower.
U.S. Navy via Gary Verver
Since a carrier air group can only carry so many airplanes, general-purpose fighters that had a strike capability were preferred to one-trick ponies like a day fighter. As a result, wing pylons with a stores capability of 2,000 lbs were introduced with the F8U-2NE (F-8E) and retrofitted to the F-8Cs and F-8Ds that were remanufactured to be F-8Ks and F-8Hs respectively:
It was apparently intended that the pylons also be used to carry external fuel tanks. Vought flight tested them but for some reason that capability was also never used in the fleet as far as I know.
However, the F8U was qualified to carry bombs on the pylons and two-shot Zuni rocket pods on the two-station Sidewinder pylons, four Zunis to a side.