How do I know what size speedometer gear I need?

What gears should I get?

1. Count the teeth on the speedometer drive gear.
2. Find the gear ratio for the drive axle.
3. Calculate tire revolutions per mile.
4. Calculate the required tooth count for the driven gear.
5. Get the Driven Gear (for your transmission) with the closest tooth count to your calculations.

Which gear has highest speed reduction?

Worm gears are perhaps the most costeffective reduction solution, but usually have a minimum 5:1 ratio and lose considerable efficiency as ratios go higher. Bevel reducers are very efficient but have an effective speed reduction upper limit of 6:1.

How do you calculate the speed of a gearbox?

Calculating Output Speed Using Pulley Diameters and Input Speed

1. RPM Output/RPM Input = Multiplication Factor. On a belt-driven fan the two primary speeds required are the RPM of the Motor and the RPM of the fan.
2. Formula. RPM Input/RPM Output = Diameter Out/Diameter In.
3. Formula.
4. RPM Out = 1,002.13.

Why is my speedometer showing wrong speed?

Reasons why your speedometer is inaccurate Damaged wiring or a blown fuse could be enough to through the speedometer out of whack. A malfunctioning sensor or engine control unit could be reporting an erroneous speed. A change in wheel or tire size could even throw off the senor and its calculations.

What is the correct tire pressure for a Jeep Wrangler?

Correct tire pressure? TJS2000. What is the correct tire pressure if you have oversized tires. LoneHowler. The tire itself should tell you. RubiCobra. Take the max weight that the tire can support (on sidewall) and multiply that by 4. RubiCobra. Personally I go with the chalk test. sparky. TJS2000. Jerry Bransford. DwayneDuby. sparky. Jacqui.

Do Jeep Wranglers have good gas mileage?

Choose a Jeep Wrangler with a four-cylinder engine, as well as a manual transmission. Six-cylinder engines and automatic transmissions will prove less fuel efficient in your Jeep Wrangler. A clutch instead of a torque convert has better fuel efficiency. A diesel Jeep Wrangler will also have improved gas mileage.

How fast is Jeep Wrangler?

Jeep Wrangler (JK) Unlimited 3.6 V6 Rubicon Auto Specs. With a fuel consumption of 11.8 litres/100km – 24 mpg UK – 20 mpg US (Average), 0 to 100 km/h (62mph) in 8.9 seconds, a maximum top speed of 112 mph (180 km/h), a curb weight of – lbs ( kgs), the Wrangler (JK) Unlimited 3.6 V6 Rubicon Auto has a naturally-aspirated V 6 cylinder engine,…

How to change a tire on a Jeep Wrangler?

Check your Jeep Wrangler owner’s manual to find the correct placement of the jack under your vehicle.