[1970cstblazer]

Originally Posted by special-K

Incomplete GM info has been posted. Your book is a '68 book, therefore the plastic knob style are not listed. Only the all metal PNs are shown.

This info is from the May 1979 edition of the Chevrolet 1947-72 1/2 Thru 1 Ton Trucks Series 10-20-30 Chassis & Body parts Catalog

K Series 10 67-69 - PN 3936253

K Series 10 68-69 - PN 3937063
K5

K Series 10 70-72 - PN 3979550
K5

I don't find it laughable that you found all those restored trucks with incorrect locking hubs. To be honest, I didn't look thoroughly through them because they are too big for this site. You didn't say what you thought about the all original truck I showed.

Let's go over all of this again..



3936253 is listed as the Warren semi auto type in the June, 1971 parts book

3937063 (Dana Spicer 26133-1x) is the Dana/Spicer half ton locking hub assembly, with the red plastic knob. So, there is some overlap. Some 1968-69 trucks had the Warren semi lock style, some had the Spicer.


This kit is GM 3979550 (Dana Spicer 26133-3x), which has the blue knob. Otherwise the 1x kit is identical:



Some of those trucks I listed were not restored. I will say that the green 1968 Fleetside SWB was restored to a VERY high level, and I didn't see where the owner had substituted incorrect parts on it. Highly doubt that he would have used the wrong hubs on it.

Also, 3979551 (Dana Spicer 34916-3) is listed as fitting 1968-72 half tons/Blazers. They are the blue plastic version