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2003 FX4 Supercrew
Joined: Aug 2010
Posts: 732
Likes: 76
I assume you know that you can safely crank it so the center of the hub to the lip of the fender is 24 1/4". I've heard sometimes with the screws you can't reach that height with the factory keys so you need aftermarket keys. The only time you run into trouble is cranking them beyond that 24 1/4" mark with the aftermarket keys. I personally can't confirm this yet as I haven't gone that high yet. Like I said I can still go another 1 1/4" but I only have about 3 or4 more turns on my key bolts, so I may very well need aftermarket to get the other 1 1/4".
Senior Member
Joined: Apr 2012
Posts: 2,137
Likes: 160
From: Garden City MI
Measure from the center of your wheel hub straight up to the fender lip, according to all posts on here 24 1/4" is the safe height. If you have plenty of bolt left on your key bolts you can just use stock keys.
Senior Member
Joined: Apr 2012
Posts: 2,137
Likes: 160
From: Garden City MI
I know that browning , I was directing that to jcavers. He seems to think keys are a waste of time, when like you and I both said with the screws it's sometimes the only way to get there. You just have to be smart and only crank it to 24.25