What speedo gear do I need??

[Carl]

Ok, I took out the factory tranny to swap it it out with a 5.o spec tranny. Now the speedo is off by 15 at 35mph. I found the calculator online and figured out that I need a 24 tooth gear... I know that such a gear means that the teeth are going to be paper thin and prone to breaking. Will a 21 tooth work and how far off do you think I will still be?


8 x 3.73 x 799 = 23.8
1000

[Ranger50]

Are you sure it's an 8T output shaft? The closest you probably can get is the 23T Jeep gear.