4x4 doesn’t engage sometimes
Logistics Pro
Joined: May 2017
Posts: 3,523
Likes: 483
From: Southern OH
How did I know you were going to focus on the occasional ice storm, which in proportion to heavy downpours, are almost non-existent? Whatever. I'm not arguing with you over my desire for convenience, or whether or not I have to get in or out of my truck at some point.
The early style locking hubs do require vacuum to disengage; in fact more than it takes to engage. If you take it apart it has a spring loaded mechanism, like the latch on an old stereo cabinet door. It has to be pushed to close, and pushed to open. There's a video with a guy testing the 4x4 hub engagement, and he put a gauge on the system and shows how it works. Thought I had it saved but can't find it.
The early style locking hubs do require vacuum to disengage; in fact more than it takes to engage. If you take it apart it has a spring loaded mechanism, like the latch on an old stereo cabinet door. It has to be pushed to close, and pushed to open. There's a video with a guy testing the 4x4 hub engagement, and he put a gauge on the system and shows how it works. Thought I had it saved but can't find it.
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