What is this and what does it do?

2006 DODGE CARAVAN
50,000 MILES
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RICH101
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  • 1 POST
Inside the van between the two front seats on the floor is a plastic plug with a tire tread engraved on it. Underneath is what looks to be a adjusting bolt.
Feb 14, 2012 at 3:07 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
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