Quote:
Originally Posted by bigblockv6
A 62 GMC or any 60-66 GMC without locking hubs would still be in 2wd until you pulled the transfer case shift lever to the 4wd position, there was no difference in the operation to 4wd between a one with locking hub and one without. Like I mentioned before Hubs were optional equipment. Over the years those trucks that didn't have locking hubs most likely were converted by their owners. Factory approved hubs were by Warn industries and later by Spicer as well. My 68 came from the factory with Spicer Hubs and Warn were also offered at extra cost as a premium hub.
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I will make it clear one more time
When you do not have locking hubs all the front end components are engaged therefore spinning the front end components including the driveshaft but the transfercase is in 2wd mode so it has no affect on the transfercase
