my 1998 ls1 with 4l60e stock engine and trans is downshifting 2 gears when driving normaly.
my speedo is correct with the gps and im driving 235\60r15 witch shold be 25,1\26 " gear ratio is 3,43 this will be 7,6
i have also performed a autoscale of transmission tables, dosent help.
i suspect the company that removed the vats\security on the engine also have change the trans tables.
can anyone have a look on the file or does anyon3 have a stock trans file i can compare my tables to?
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