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If steeper overdrive gears were available, I would put in 4.10's and offset the loss of cruising economy with the steeper overdrive.
Not sure how the PCM would handle the different ratios and speedo.
just a thought.
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1998 Firebird Coupe
Mods: 3.73 Gears, Eaton TrueTrac, PCM Tune, LS1 Aluminum Drive Shaft, Cold Air Intake, 180 Thermostat, Magnaflow Cat-Back Exhaust, Moog LCA busings.
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