While looking at the front factory bar, I noticed the C-bushings are different sizes to accomodate the frame height difference.
I received information from MacSprings.com that the Hellwig Sporttech bar is available for $150 (1 7/16 in diameter).

Because I have the limited slip differential (larger gear housing), they do not have one available yet for the rear. However, some posters have installed these with mixed success.

Any opinions from others who've installed a front or rear bar on their SCrew, and their opinion of performance, would be extremely helpful to me...and hopefully other posters.

Thanks in advance....

------------------
2001 F-150 SuperCrew, Lariat 4x2, Black w/gray leather, 5.4L Engine, Towing package (1.02" radiator)

Modifications: Gibson SideSwept Exhaust, K&N filtercharger w/modified cold air box, ******* lid, Bed Extender, Ventvisors, Hood deflector, Black Stull Billet Grille, Lightning Tails

Shopping List: Oil filter relocation, Front & Rear Swaybars, PermaCool Cool Pack II dual electric fans (available this summer)