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  1. SlowcountrySilverado

    Speedo Off/High RPM/ABS Light On

    Hey Nick, not sure what the axle ratio is but don't have any reason to believe it's anything other than stock. Has the stock transmission that came with the truck, that's original. Tires are 28". The numbers that the reader are spitting out feels like things are about where they should be...
  2. SlowcountrySilverado

    Speedo Off/High RPM/ABS Light On

    Okay, some new discoveries tonight and definitely want yalls take on it. Might should move this but here's what I learned. Plugged in my live data OBD tool, and looks like the Tach was off. -Live Data was reading 1900ish RPM, in 5th (OD? this is where I was able to count to), at 65-70mph...
  3. SlowcountrySilverado

    Speedo Off/High RPM/ABS Light On

    Hey Nick, thanks for popping in quickly.
  4. SlowcountrySilverado

    Speedo Off/High RPM/ABS Light On

    Good evening folks, Decently long time reader, first time poster here as I've been looking for a GMT-400 for years, and finally the stars aligned and was able to buy the truck I've wanted since I was a kid. Some background, I drive pretty much exclusively 90's trucks, have quite a few but this...
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