4R100 Transmission Upgrade - Super Tranny
Plugging in the upgraded 4R100 was a simple remove-and-replace deal for South Bay Truck & 4x4. The original factory wiring plugged right into the new unit, and the transfer case was heaved into position and bolted back on. Notice how Gilliland modified his tranny jack with scraps of welded-on steel to secure the monster automatic--you don't want to drop one of these things! View Related Article
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