How do you find the rear differential ratio on a Subaru?
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. Example: The wheel is turned exactly 20 revolutions. The propeller shaft turns 41.1 turns. 41.1/20 = 2.055 X 2 = 4.11.
What is Subaru dual range?
Dual range gearboxes allow the driver to select between higher and lower range of gearing; introducing a new level of versatility when lower speeds would be more suitable to the terrain. The hi/lo range setup allows for comfortable daily city driving with the option to easily adapt to more demanding off-road terrain.
How to tell the gear ratio of a rear end?
The letters will indicate the type of rear end and the number will indicate gear ratio. For example, an axle code of CA31 indicates a C200 rear differential with 3.133 final drive ratio, while an axle code of CC35 indicates an M226 rear differential with 3.538 final drive ratio.
Is the differential gear ratio too low or too high?
Just a quick scan at the differential gear ratio chart it’s obvious that a ratio of 3.909 is too low at 2587 rpm, ratio of 4.88 is too high at 3230 rpm. But looking at 4.10 with the rpm at 2713 is the closest to 2809 stock rpm.
What should the diff ratio be on a car?
But looking at 4.10 with the rpm at 2713 is the closest to 2809 stock rpm. Even with the help from the differential gear ratio chart and the right diff ratio installed, the vehicle will never regain its fuel economy it had before simply due to the fact that larger tires will have a bigger rolling resistance.
What makes a differential work in a Nissan?
Differentials consist of a pinion gear, driven by the output from the transmission, and a ring gear (which Nissan calls drive gear) which drives the axles. Differentials also include other components that allow the drive wheels to spin at different speeds, which happens whenever the vehicle isn’t travelling in a perfectly straight line.
Just a quick scan at the differential gear ratio chart it’s obvious that a ratio of 3.909 is too low at 2587 rpm, ratio of 4.88 is too high at 3230 rpm. But looking at 4.10 with the rpm at 2713 is the closest to 2809 stock rpm.
Where do I find my rear end gear ratio?
You can typically find your RPO code on driver side door panel or glove box. General Motors rear end differentials are referred to by the diameter of the ring gear, i.e. 7.5 inch, 8.5 inch, 10.5 inch. Our experts will help you find the correct ring and pinion set for your particular application. Give us a call at 800-216-1632 to get started.
What’s the difference in gear ratios in a Nissan Frontier?
At 1:1 ratio with 3:69 (3;73) , 33 tall tires your rpm is 2469. At 1;1 ratio with 4:11, with same size tire your rpm is 2720. 251 rpm difference. Power is made at a lower speed with 4:11’s. With 265/75/16’s ( what I run),rpm difference is close to 500 rpm. Click to expand… The “sweet spot” will be different for different uses .
Where can I find West Coast differentials gear ratios?
Find all of the gear ratios available for your vehicle in our Application Guides or call our staff of differential experts at (800) 510-0950 for LIVE help. West Coast Differentials stocks a huge inventory of OEM and Aftermarket Ring & Pinion Gear sets and orders placed before 4 PM Pacific Standard time usually ship the SAME DAY!