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Re: 2000 GMC 7.4L Emissions
Posted to HD/Fleet Forum on 12/19/2006 3 Replies

Any chance the frame has been stretched?

Exhaust system (HO2S & CAT) been moved back a few inches / feet?

Saw a couple frame stretches that the CAT was repositioned darn near the rear axle. Took forever for those CAT's to light off.

Grab your IR/Raytec a... Login to read more.

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