All Wheel Drive Conversions

On-line or Off, You're Driving Marmon-Herrington quality

Since the 1930’s, Marmon-Herrington has designed and produced all-wheel drive kits for off-line installation. Today, we offer kitting solutions for most Class 6, 7, and 8 trucks. These kits represent the best in OEM quality and function for severe all-wheel drive applications.

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Better Components Mean Better Kits

Our kits include the best match of our modular axles and transfer cases for your intended application. To provide clearance for the all-wheel drive axles and components, we offer our proven riser block, sub-frame, or step-frame designs. And, you can rest assured knowing that Marmon-Herrington kits meet all applicable Federal Motor Vehicle Safety Standards.