i 1000 help for 06 silverado

[honda1]

i just bought a i 1000 and can not find where to chance my gear ratio from stock to 373 ..and also its only showing 87 tune or diablo tune any help would be great thanks

[06MonteSS]

that's all you have for that 2006 truck.. you have an 87 octane tune, and the Diablo Tune - which is for 91+ octane.. that's all there is for that truck, so there's no issue there...

and the stock gear ratio is already 3.73.. so no need to change that anyway..

[honda1]

my stock gear was a 323 i changed it to a 373 the only reason i bought the tuner to set gear ratio to fix my speedo

[06MonteSS]

really? I just looked through 6 different people's 2006 silverado stock tunes, and stock gear ratio was 3.73 on all of 'em... interesting...

well, if you can't find the gear/axle ratio setting under any menus when you go to modify tune, then you'll need to have a custom tune done for it.. you'll need to post up copies of all your tune files and they'll be able to create you a new tune file to change the gear ratio...