I have my 2001 on order and am collecting a list of mods to buy before it arrives. I am going to go with 4.30 gears only because my car won't get driven much. For you, I'd say go with 3.73 or 4.10 There isn't much difference between the 3.73's and 3.55's from what I understand. Also, If you are getting a 5-speed, an aftermarket shifter would be a good investment.
Congrats on the purchase and good luck with whatever modifications you make!
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91 GT AOD: 3.73's, Pulleys,PI Converter, 14.71@91.78mph
(before pulleys)
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