When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Look in the damn owners manual. I know that in 97, the gts take five and the cobra takes six.
Matt
If you're not going to read the thread and you're just going to yell at people, at least have your facts straight. The owners manual you refer to clearly states 6 quarts for the 1997 Mustang GT.