Cincy_Donut Posted May 22, 2014 Report Share Posted May 22, 2014 Hey Guys. A couple months ago I was lucky enough to buy SGT0339. I was hoping someone on here was the previous owner as i have some questions. I am curious if the car has had any performance upgrades. The car came with 3.55 gears but the car feels like it has 4.10 gears installed. Thanks for your help!! Link to comment Share on other sites More sharing options...
andrewnagle1964 Posted May 22, 2014 Report Share Posted May 22, 2014 What Rpm's are you at 70mph ? Link to comment Share on other sites More sharing options...
Cincy_Donut Posted May 22, 2014 Author Report Share Posted May 22, 2014 2500 RPM or so Link to comment Share on other sites More sharing options...
EL SHELBY Posted May 23, 2014 Report Share Posted May 23, 2014 339? That's closest number to mine that I have seen yet. Welcome to the gang! Link to comment Share on other sites More sharing options...
Larry T Posted May 23, 2014 Report Share Posted May 23, 2014 Welcome to the family !!!! Link to comment Share on other sites More sharing options...
andrewnagle1964 Posted May 23, 2014 Report Share Posted May 23, 2014 2500 RPM or so those would be 4.10's than That is what I am seeing Link to comment Share on other sites More sharing options...
Henry08SGT0340 Posted June 11, 2014 Report Share Posted June 11, 2014 Hey I have 0340 in FRANCE since new. Link to comment Share on other sites More sharing options...
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