For repair manual, we have Chilton's and Haynes...I think the Chilton's is better.

As for parts, try Summit, JCWhitney, Jeg's, carparts.com

(John Butler kicks ass, btw)

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2004 XLT 4.0 4x4, 3" PA body lift, 32" BFG M/Ts, Dick Cepek DC-2 wheels, Euro tailights, self-painted headlight mod, NAV/DVD/XM/iPod stereo (Pioneer AVIC-D3), Line-X, Westin step bars, AVS bug shield and window vents