How do I find out what size fuel tank I have for a 1991 GMC Sierra 1500?

Asked by Nov 10, 2016 at 01:32 PM about the 1991 GMC Sierra 1500

Question type: General

Fuel tank is leaking and I need to order another one.  Tried using the VIN on
some sites but no luck.

2 Answers

40,725

There were two sizes. Measure yours to see what size you have. http://www.lmctruck.com/features/cd/CDGTK.htm

40,725

Shortbed trucks were equipped with 25 gallon tanks; longbed trucks were equipped with either a 25 gallon or 34 gallon tank. Measure your gas tank or gas tank shield to determine which gas tank you need.

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