Hey Guys,
Been ages since I posted last. Just replaced my transmission yesterday, FINALLY. No grinding, hard shifting or other problems. Which brings me to my question. How do I figure the correct speedo gear to correct my speedometer? I have stock 3.909 gears, and BF Goodrich 31x10.50-15's on it now, and in 5th gear at 65 mph on my GPS, the speedo shows 53 mph. I took out the driven gear and it has 22 teeth. I have a table for correcting the speed for 4.63 gears, and it looks like the larger the tire, the fewer teeth. Does anyone have a line on this? I can't be the only one to come across this-I'm just not that special. (Mom was right). Any help would be appreciated.