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1978 Gmc Jimmy K5 Atlas Ii Transfer Case

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Power is routed through a heavily beefed 700-R4 automatic transmission that has a B&M aluminum pan and Derale cooler. From there, power is routed to the axles by a 4.3:1 ratio Advance Adapters Atlas II transfer case. This ’case is protected by a bolt-on skidplate made from 1.5-inch-diameter, 0.120-inch-wall tubing and 3⁄8-inch-thick aluminum plate. Sprouting from the T-case is a pair of CV-equipped driveshafts and the rear ’shaft has a Spicer long slip-yoke.

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