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Old 03-22-2012, 02:11 PM   #13
6772owner
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Join Date: Jan 2008
Location: Colorado
Posts: 1,193
Re: Front axel engagement

From what I know the Ford system operates as follows... the "free" position means that the hubs are disengaged when the truck is in 2wd and the "lock" means that the hubs are locked regardless of the position of the switch.

The hubs are engaged with vacuum and teh common problem with them is a foam seal at the hub that leaks. We had to replace these seals all the time when we did ball joints and such at my previous job. I may not be 100% correct, but I believe this to be true...
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1993 Camaro Z28, A4, CAI, Cat-Back Exhaust

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