Why hang chain under truck.?

Question:
Saw on most of truck that there is a chain hang under it's chasis with one end nearly touch the road. I want to know a real reason. (Someone said, to prevent splash from electrostatic.)

Answers:

do I need snow tires for the snow if I have a 4 wheel drive with all season tires?

Possibly you are seeing the tire chains that are usually hung up under there when not in use by a lot of those rigs that travel coast to coast and see a lot of snow on roads.

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lowering car speedometers poll?

It keeps the truck grounded . This helps with car sickest and help stops static electricity.

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How far does a car travel going 30 mph in 5 seconds?

if it is in the rear center it may be the chain used to hold the spare tire on. in pick up trucks and such the spare tire is often stored under the truck by a chain. if they used their spare or got bigger tires and that spare doesn't fit they may have taken it off and left the chain hanging

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How do you parrallel park and back into a parking space?

autumnfir hit it

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