dont tighten too much, you can burn out a bearing.

i disagree with using them every time you park-dont use in cold weather, unless absolutely nessicary, as the brakes can freeze up on you.
use them when you park on a hill, of course.

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1984 123.193 372,xxx miles, room for Seven.

1999 Dodge Durango Cummins 4BTAA 47RE 5k lb 4x4 getting 25+mpgs, room for Seven.