How do you find the rear differential ratio on a Subaru?
Turn the raised wheel (it should turn fairly easily) and count the number of turns of the propeller shaft. With one wheel on the ground and one being turned, the ratio will be #turns of the propeller shaft divided by the number of turns of the wheel, times 2.
What diff ratio is faster?
A lower (taller) gear ratio provides a higher top speed, and a higher (shorter) gear ratio provides faster acceleration. . Besides the gears in the transmission, there is also a gear in the rear differential.
Are all Subaru transmissions the same?
Subaru motor vehicles have used manual, conventional automatic, and continuously variable (CVT) transmissions. Subaru manufactures its own manual and CVT transmissions (for non-Kei cars). Since the 1970s, all Subaru conventional automatic transmissions have been Jatco designs adapted to Subaru specifications.
What does a lower diff ratio mean?
Differential Gear Ratio determines the number of times the drive shaft (or pinion) will rotate for each turn of the wheels (or ring gear). With a lower gear ratio the drive shaft (and thus the engine) turns more for each revolution of the wheel, delivering more power and torque to the wheel for any given speed.
Who makes the R180 diff?
Subaru
Subaru OEM Rear Differential (04-18 STI R180) Brand new, straight from Subaru, R-180 rear differentials.
What is Subaru manual transmission?
Subaru still offers the manual shifter in the 2020 Crosstrek, Impreza, WRX, WRX STI, and BRZ. For driving enthusiasts who want to be more engaged with their car, a manual transmission allows you to be in complete control of driver inputs. It’s the best way to stay connected to the vehicle.
What is the strongest Subaru transmission?
6-speed STI box
The 6-speed STI box was designed by Subaru with motorsport in mind. It is by far the best and strongest gearbox Subaru have ever made, and with the highest level of operability. The six-speed gear set is nearly twice the size of the 5-speed and twice as strong.
What year did Subaru introduce CVT?
1989
Subaru was an early adopter of the CVT transmission when it introduced it in the Subaru Justy in 1989.
Is a 3.55 axle ratio good?
BEST TOWING RATIO: In general, the best towing axle ratio for most of the post-2010 pickups is in 3.55 or 3.73. Those ratios provide very good acceleration with gas V-8s and diesels.
How do I know my diff ratio?
The calculation uses the number of teeth in the ring gear and divides it by the number of teeth in the pinion gear to provide you with a “[result] to 1” ratio. For example, if the pinion gear has 41 teeth, and the ring gear has 11 teeth, the ratio would be calculated as 41/11, which is equal to 3.73 = 3.73:1.
What is the rear diff ratio for the legacy and Outback?
The Outback was the only model to use the 4.44 ratio, and it was only used in the EJ25 with automatic trans. Same was for a manual trans, a regular Legacy is a 3.90 vs. Legacy GT and Outback at 4.11. Click to expand… Do you know what the rear diff ratio is for 08 Legacy and 08 impreza?
What is the difference between a 2000-04 legacy L Auto and Outback?
A 2000-04 Legacy L auto would be a 4.11. The Outback was the only model to use the 4.44 ratio, and it was only used in the EJ25 with automatic trans. Same was for a manual trans, a regular Legacy is a 3.90 vs. Legacy GT and Outback at 4.11.
How do you determine rear differential ratio?
However, determining the rear differential ratio is fairly easy. Raise one rear wheel. Car in neutral (block the other wheels all around to ensure the car can’t roll!). Mark the raised wheel and the propeller shaft with a line (chalk, crayon, etc).