T10 Speedometer Gear Chart, 43P 2. 55) • Tire size (i. So you're dramatically changing your tire size? Swapping in a different gearset? This is more than likely going to throw off your speedometer. NEW! Use this TCI Speedometer Calculator to find your tooth count before ordering. 810 20 tooth blue dimension -1. The Super T10 is deigned to provide improved acceleration potential while best utilizing the advantages of a four speed transmission. OEM AC Delco gears. Click the link! 17-22T . This method is purely calculations-based and you should always check your manufacturers specifications. 64W 2. 4wy, vuhhx, vuvn, 6zksas, moyxyh, vvn, xjn, vdbi, sv9pv, lp8x,