that sounds like a lot of gear for that tranny. most cars run low numberic gears with that tranny don't they? My father inlaw had a 6l80 with a ls9 and 3.89 gears several years ago and it was way too much. Due to lack of computer programing for a ls9/6l80 in 2010 he ended up pulling it out and going t56 magnum
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69 camaro
03 z06
90 mustang coupe
1950 international l110
1993 mustang gt
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