SS3274SPD Posted July 31, 2017 Share Posted July 31, 2017 1990 TC AUTOMATIC MY SPEEDO READS 5MPH FAST. I HAVE 225/50/16 TIRES. ANY THOUGHTS?? THANKS! Link to comment Share on other sites More sharing options...
Reaper1 Posted July 31, 2017 Share Posted July 31, 2017 Keeps you from getting a ticket as bad! (OK..smart @ss reply, I know) Honestly there's a lot of factory cars out there that the speedo reads fast. Some do it on purpose. There are a few different speed distance sensor gears, but 5mph I think is well within the % error that's acceptable. Link to comment Share on other sites More sharing options...
Hemi Dude Posted August 1, 2017 Share Posted August 1, 2017 On 7/31/2017 at 7:36 AM, SS3274SPD said: 1990 TC AUTOMATIC MY SPEEDO READS 5MPH FAST. I HAVE 225/50/16 TIRES. ANY THOUGHTS?? THANKS! Remove your distance sensor and see which drive gear you have. Replace it with a gear that has one more tooth on the gear. Link to comment Share on other sites More sharing options...
TwinCamFan Posted August 2, 2017 Share Posted August 2, 2017 I've seen white ones, blue ones, and yellow ones. Are there others? If so how many, does anyone know which gear has which # of teeth o should we start a little;e observation and data base? Link to comment Share on other sites More sharing options...
Garnet & Gold Posted August 3, 2017 Share Posted August 3, 2017 There are 3 different gears as defined, the yellow gear has 19 teeth and is designed for 14", 15" and 16" tires; the blue gear has 20 teeth and is designed for 13", 14" and 15" tires; there is also a white gear with 21 teeth and I don't know the intended tire size. Link to comment Share on other sites More sharing options...
SS3274SPD Posted August 3, 2017 Author Share Posted August 3, 2017 THANKS FOR ALL THE REPLIES. I HAVE YELLOW 19 TEETH GEAR. SO, LOOKS LIKE I NEED A BLUE 20 TOOTH GEAR. ANY IDEAS WHERE I CAN FIND ONE?? THANKS AGAIN Link to comment Share on other sites More sharing options...
16v_guru Posted August 4, 2017 Share Posted August 4, 2017 I have the blue gear you are looking for. I can be reached at: rick@rdiperformance.com Regards, Rick D. Your Chrysler TC by Maserati Performance Specialist Link to comment Share on other sites More sharing options...
SS3274SPD Posted August 7, 2017 Author Share Posted August 7, 2017 FOUND THE GEAR, NOW JUST NEED TO INSTALL. WILL POST WHEN IN AND IF CORRECTED THE PROBLEM. THANKS TO ALL FOR THE INFO! Link to comment Share on other sites More sharing options...
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