Drivetrain› 4x4 Driveline Components

Dana

STEER AXLE BEAM

$15,443.03

SKU: D00O 821820

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Special Order
Ships in 4–6 weeks
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

This adapter kit converts a GM SM420 4-speed manual transmission to a Jeep Dana 18 or Dana 20 transfer case. It includes an adapter housing, spud shaft, mount block, gaskets, seal, hardware, and instructions. The housing is 4.00 inches long and made from 356 T-6 heat-treated aluminum alloy. It is compatible with specific Jeep CJ and Jeepster/CJ models when used with the appropriate drive gears for the Dana 18 transfer case.

Fitment

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Specifications

BrandDana
Part NumberD00O 821820

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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