4wd spicer hub color

[1970cstblazer]

Originally Posted by too much stuff

I have not seen a plastic hub knob used in 68. I think the red 1/2 ton knobs were 69 blazer and maybe early 70. The reds were used into 71 on some 3/4 tons.

If you go by the brochures it gets more confusing...Those show the metal HUB LOK dial used into 70 on 3/4 tons.
I have a jimmy brochure from 7-69 showing all blue hubs. I also have a gmc brochure from 9-69 showing all red. Keep in mind the jimmy was just coming out.
I don't see any red hubs in 70 in brochures, but a couple of 71 brochures had them???

The white shortbed above this appears to have 3/4 ton hubcaps on it.

The white shortbed has special 16" wheels on it, and therefore they take the larger caps?

The partsbooks indicate 1968 was the first year of the Dana Spicer lockout hubs that were used until model year 1980. I have also proven this with an excerpt from the 1968 factory service manual showcasing them, as well as several original 1968 trucks equipped with them. The cutoff from red knobs to blue knobs on the half tons/Blazers seems to be in the early March, 1970 timeframe. Red knobs on the 3/4 tons continued into the early 1971 model year, before being switched to blue.

The four wheel drive emblem used from 1968-70 was always located under the front marker lamp, and the engine callout emblem was located under the model emblem on the rearward of the front fender.