## How do I know what size speedometer gear I need?

To determine your tires true diameter in relation to determining what speedometer gears you need, measure from the ground up to the center of the axle then multiply by two. The actual run out of the tire can be as much as 2 to 3 inches less than what the circumference of the tire measures.

What kind of speedometer does a 700R4 use?

Your speedometer may or may not show a number. Most speedometer from 1965 on use 1000. Twelve speedometer driven gears are available for the 700R4 / 4L60 transmissions to calibrate the speedometer with various axle ratios and tire diameters.

How many gears are in a 700R4 transmission?

The following speedometer drive gears and driven gears are available for the 700R4 / 4L60 transmissions. Most cars and trucks with low rear end ratios will take a 15 tooth drive gear. There are two driven gear housings, one for 34 through 39 tooth driven gears and one for 40 through 45 tooth driven gears.

### How tall are the teeth on a 700R4?

Description Axle Ratio Tire Height Driven Gear Teeth 4.56 33 42 4.56 35 39 4.10 26 45 will work, but will read about 3 MPH

How many teeth are in a Speedo gear?

The speedo gear combination for a 2.73 rear (assuming 29-inch diameter tires) is a 18-tooth drive gear and 35-tooth driven gear. Switching to a 45-tooth driven gear (the most teeth available) would translate to the vehicle traveling at 78 percent of indicated speed – close but not perfect.

The following speedometer drive gears and driven gears are available for the 700R4 / 4L60 transmissions. Most cars and trucks with low rear end ratios will take a 15 tooth drive gear. There are two driven gear housings, one for 34 through 39 tooth driven gears and one for 40 through 45 tooth driven gears.

Your speedometer may or may not show a number. Most speedometer from 1965 on use 1000. Twelve speedometer driven gears are available for the 700R4 / 4L60 transmissions to calibrate the speedometer with various axle ratios and tire diameters.

How many teeth are in a Street Fighter 700-R4?

* – This gear is shipped in all TCI Street Fighter 700-R4 transmissions. – Two 2.078″ diameter housings, each made from either aluminum or plastic, are available for driven gears with 34 or more teeth. One fits gears from 34 – 39 teeth and the second one fits gears from 40 – 45 teeth.