Quote:
Originally Posted by Flxratd
on my dads 04(should be the same) the vacum lines are out at the back side of the hubs
they use vacum to dissingage the front end hubs when you start the vehicle. on his i tested the vacum at the hubs and found i had 20"s on one side and only 5"s on the other. found that the one hubs diaphram was bad and that caused the other to wear the splines out from trying to ingage. ended up having to replace both (pricey) but thats what it took to fix his
good luck.
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Are you talking about an F250 or 350 Super Duty? Didn't think the F150's had anytype of locking hubs?
My bro-in-law had issues with the piece that mounts on the driver's side firewall basically shorting out. Water would run on it from the cowl area and get into the electroncs. I believe his is an '04.