On Dec 26, 2007 8:33 PM, Rick Suter <rick.suteriii@gmail.com> wrote:
>
> Victim is a 1999 extended cab SLT 5.2l, auto, 4x4 with 120k. It's
> never run as nice as I've always thought it should. The idle has never
> been smooth and recently it stumbles at various RPMs and the tranny is
> beginning to show possible issues.
>
> I'm thinking about a drivetrain swap. Has anyone done a 4.7 or 5.7
> with attached Auto and Tcase in place of the 5.2l and 44re? How tough
> if the entire donor vehicle is present?
The front end of the frame was modified to fit the 4.7 in 2000, so
having a donor '00+ Dak on hand may be beneficial. The front
differential is different between '99 and '00, and that year switched
to a rack & pinion steering to boot. You might have to bring all these
over.
You'll need the PCM, TCM and wiring harnesses for sure. Also, the fan
shroud & configuration were changed in '00, so make sure you have
those.
You might have some issues mating the newer tranny up to your existing
transfer case.
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