Join Date: Jun 2010
Location: rosamond CA
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456 with 38's and im still off by 10????
i have 456 gears with 38 inch tires and my speedo is still off by roughly 10? dosent seem right what do you guys think? also i have a dp-tuner at the house ready to install but im worried that the truck won't act right as far as shift points and power with the tuner installed??????
Do i need truspeed or get it programmmed for the tuner to work properly?
GOTTA PAY TO PLAY
12" ICON suspension lift, dual 7100 bilsteins resi's, 456 gears, auburn limted slip, 40" toyo's, 20" Eagle alloy's, 6637, 4" straight pipe, DP tuner, guages.