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**gmc 2500 4x4** · 11-25-2021, 06:37 AM

im assuming my rockwell has the 4tooth inside and i have what is pictured with 11 teeth, and some very useful info you shared, let me know what you come up with thank you!

11-25-2021, 06:37 AM	#5
gmc 2500 4x4 Senior Member Join Date: Mar 2012 Location: ripley ny Posts: 2,887	Re: speedometer calibration im assuming my rockwell has the 4tooth inside and i have what is pictured with 11 teeth, and some very useful info you shared, let me know what you come up with thank you!