No, Mr. Lemmywinks, No!!!
Join Date: Jun 2005
Location: Harriman, TN
You guys want this tool.
This is from our Bros at SCCOA.
If your transmission is original, its a 7-tooth; later are 8-tooth.
Odds are your stock mn12 is 3.27 gear ratio.
You can get your tire info from your tires' page on tire rack.
I have a purple gear in the Tbird, and an orange gear in Lazarus.
Red '96 Cougar XR-7 240k mi. '02 4R70W, PST DS : '03 PI engine, 04 maf, 24lb injectors, 2.5" exhaust, '02 4r70w + Jmod, DirtyD0g TC + cooler + 3/8" lines, 255 walbro fp. Alpine system.
Black '96 Cougar XR-7 (Lazarus) 210k mi PI Intake, '02 4R70W, Jmod, PST DS, GrogTune, Konis, Mark LCA+Poly, racecougar Custom Engine Chain, and JL and racecougar Bracing.
Black '97 Tbird Limited Edition, '02 4R70W, 255 walbro, PST DS, PBR Brakes&SS lines, Toicko Blues & Springs, GrogTune.
"War Is Peace. Freedom Is Slavery. Ignorance Is Strength." - George Orwell.
Truth Isn't Truth. - Rudy Giuliani, 2018 Award winner, “Most Outrageous Diversion” by MSNBC for this quote