2 or 4 ABS?
Technical Article Contributor
Joined: Feb 2006
Posts: 1,002
Likes: 16
From: Central Coast, California
'99 Work Series and XL's came standard w/ rear ABS (4 wheel optional) ... XLT's and Lariats came standard w/ 4 wheel ABS (as per the '99 F-Series brochure)
Technical Article Contributor
Joined: Oct 2005
Posts: 25,641
Likes: 19
From: MI
Oh is that what it is, -yea I didn't know that. My buddy has a 99 XLT 4X4 w/4 wheel discs and a larger booster. So that's why I assumed all 99's we're that way standard. Thank for pointing that out.