LB7: 2WD to 4WD

Vrabel

TOYAHOLIC
May 22, 2008
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Hewitt, NJ
Looking at a truck almost identical to mine. It's a 2wd 8.1 CCSB with no rust. I can pick it up for $3500.
I figured I can get a good buck for the 8.1 and allison to recover some cost.
How big of a job is it to convert it to 4wd?