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Old 04-02-2023, 03:06 PM   #10
truckster
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Join Date: Jan 2001
Location: Orem, Utah
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Re: Truck was in 4H for 130 Hwy miles but hubs were un-locked

Quote:
Originally Posted by Accelo View Post
The reason for the "Do not drive on pavement with 4 wheel engaged" is the front outer U-joints are not constant velocity joints. It puts a lot of strain on the system when turning. Especially tight corners. Even with the hubs engaged, on the highway, it would have made little difference. Full time 4 wheel drive wasn't common till the CV joints were perfected.
On the other hand, if you drive it in 4WD with the hubs locked in a parking lot, you'll notice right away...
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