You need to swap in a welded viscous coupling or have a welded center diff already. Then you can pull the xfer case on the dyno and let the driveshaft hang, or removing the xfer case and driveshaft at home. Shane the dyno whore will love you for performing the latter.
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2009 Corvette Z51-SOLD
1992 Mitsubishi Eclipse GSX-SOLD
2013 BMW Z4-Current summer hooptie
2017 GMC Yukon-Current winter hooptie
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