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BDS Suspension
Zone Offroad Products
4x4 Posi-Lok
JKS Manufacturing

Sport Truck USA, Inc. is an aftermarket suspension and off road product warehouse providing dependable, fast and friendly service to off road businesses everywhere.

Trailride photo

Why 4x4 Posi-Lok?

You paid thousands of dollars for your 4-wheel drive! Shouldn’t it work when you need it? Whether you use your 4-wheel drive once a year or daily, 4x4 Posi-Lok is the only sure thing.

What is 4x4 Posi-Lok?




After installing my Posi-Lok engagement system on my 1987 Dodge Ramcharger, I’ve enjoyed trouble-free 4x4 capabilities. I thought this photo of the sticker on my rear driver’s window represents your product well…in true form!

Greg Wilkinson, Spring Hill, FL

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4x4 Posi-Lok