Look on the label at the end of the driver's door. It contains alot of info including GVW or Gross Vehicle Weight. It often lists the weight by axle as well.
6400 pounds
how much oil does a 1996 Tahoe hold
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1999 Chevy Tahoe automatic transfer case requires 2.2 qts
295
too much
How mcuch does a 2003 Chevy Malibu weigh?
How much does a Chevy Malibu 3.1 liter V6 weigh?
About 12.00 dollars
6 quarts
$1500.00 to $1800.00
Price for parts on 99 tahoe head gasket