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Buick Turbo Tech General technical support for the 86-87 Buick turbo cars

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Old 08-31-2010, 12:34 PM
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turbopowered68 turbopowered68 is offline
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Question Which rear gears to get???? 3.42 OR 3.55

its a heavy car @3800#
i just bought a 12 bolt rear and i NEED Gears as the 3.31s in it has a few bad teeth.
my NEW as in available "Brand new" gear selection is 3.08 (not going to happen) 3.42, 3.55 and numerically higher.
So this narrows it down for me to 3.42 or 3.55?????
Which one would you get??

BTW NOT going to lock the Converter at WOT.
the converter is a 9 or 9.5 3000 LU from ProTorque.
thanks for your help

MPH goal - don't know but looking to go 11.50s
current tire size is 26X10X15 slick

Also the car gets DRIVEN DAILY
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Old 08-31-2010, 06:20 PM
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If you're sticking with the 26" tires, I tyhink the 3.42's will do....
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