Quote:
Originally Posted by Ironhorse
I am no authority by no way but did find this so thought would offer it here.
Found in my copy of Motorbooks International "Chevrolet Pickup - Red Book" As from page 173 of 1971 pickup "Facts"
"Mechanically, the disc braces became standard equipment on all trucks. These were power assisted on all models except the 1/2 ton, for which power assist was optional. All pickups were equipped with a small yellow caution sticker on the tailgate" (The disc brake sticker I referred to earlier in the thread)
My K10 has power assisted front discs, still has the original SIPD on the glove box door. Will check the SIPD tag and see if anything is mentioned about power assist as an option. Never looked that closely before.
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Being a half-ton, I think you'll find your K10 has the J70 option listed on your SPID.
I'm starting to think that 71-72 3/4 ton and 1 ton trucks came standard with power brakes. 1970 and older 3/4 tons and 1 ton trucks had it listed on the SPID as an option (see attached 1-ton 1970 SPID that show the J70 option, then a 71 3/4 ton that has several heavy-duty options, but no J70 option--suggesting they were likely standard on 3/4+ ton trucks starting in 71.)