spedometer off
06-14-2010, 07:47 PM
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Car: 1988 Trans Am GTA
Engine: 305
Transmission: 700R4
Axle/Gears: 3.73 posi
spedometer off
my spedometer is off at diffrent amounts at diffrent speeds like when im doing 60 it says im doing 70, what should i do to fiix this?
06-17-2010, 01:09 PM
#2
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Re: spedometer off
Well...I see you have 3.73s, so the obvious fix would be to put the factory gears back in it since that's what it's calibrated for. I've got the same problem with my '02 since I put 4.10s in, but I know I can fix that with tuning (OBD II). No idea how to fix that on an OBD I car though other than changing gears, but I'm sure someone knows...
06-17-2010, 08:46 PM
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Car: 86 TRANSAM
Engine: 406
Transmission: 700R4
Axle/Gears: 3.27
Re: spedometer off
Go to the "Transmissions and Drive train" section and read the sticky about transmission gears. There are different gears you can buy (internal in transmission), or converter boxes (external) that will change the speedo readout to be correct.
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