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Grannys Tranny Sm465 Transmission Upgrade Spicer 18 Transfer Case

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The Spicer 18 transfer case has a long history in the Jeep world since it pretty much arrived on the scene in 1940, helped beat the WWII enemies from inside every Jeep, and then stuck around until the early ’70s. The iron case has both the front and rear outputs on the passenger side, a benefit because they keep the differentials in line for dodging trail obstacles, plus it helps lower both the front and rear output for better driveshaft angles.

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