Can you run different gear ratios in a 4×4?
For instance, it is fine to run a 4.10/4.11 combination for on road driving. That close of a ratio difference will have no effect on the life of the 4wd parts. You can get away with around 1% difference on the road, but the life of the parts will be substantially lower.
Do front and rear gear ratios need to match?
As long as there’s less than a 1% difference between the ratios, they’re considered “close enough”. If your front axle only has 4.11 gears (37 ring gear teeth and 9 pinion teeth) but your rear axle has 4.09 gears (45 ring gear teeth and 11 pinion teeth) the ratios don’t match exactly.
What gear ratio is best for off roading?
Under 50 Crawl Ratio – Most factory setups fall here. 50-60s Crawl Ratio – Backroads and light trail use. 80s Crawl Ratio – Intermediate trail use. 110-130s Crawl Ratio – Ideal for crawling, it allows taking obstacles at a slow, controlled speed without riding the brakes or applying constant throttle to avoid stalling.
Are front and rear diffs the same?
All vehicles have differentials of some kind. In front wheel drive vehicles the differential is in the front and called a transaxle. In rear-wheel drive vehicles, the differential is in the back. Four wheel drive vehicles have differentials in both the front and back.
What happens when you change diff ratio?
This change will equate to longer legs up top, and the engine will be revving a touch lower than it was at 100km/h, however this is often to the detriment of your four-wheel drive. Your economy, acceleration, and speedometer will be off, and the engine will have to work harder to maintain 100km/h at a lower rpm.
Are front and rear ring and pinion the same?
These sets are exactly the same. But when the rig is driven forward the pinion is putting pressure on the drive side of the ring gear in the rear and on the coast side of the ring gear in front.
Are front and rear differentials the same?
In front wheel drive vehicles the differential is in the front and called a transaxle. In rear-wheel drive vehicles, the differential is in the back. Four wheel drive vehicles have differentials in both the front and back. The differential contains fluid that lubricates and cools the gears.
What does 4.88 gear ratio mean?
If you had something like 4.88’s, then your drive shaft (engine) would need to spin almost 5 times for every one rotation of the tire. So think of it like this, ride a 10 speed bike.
What is considered a good crawl ratio?
An ideal crawl ratio for general-use 4x4s is typically in the 50:1 range. Those who tackle more difficult terrain will strive to obtain at least a 100:1 ratio. Crawl speed is another bit of terminology that can be helpful to know.
Do bigger tires change gear ratio?
When changing gears for taller tires, you are heading to a numerically higher gear ratio. The higher the gear ratio, the smaller the pinion gear. You do not want go too low in an effort to increase power to the wheels and/or relieve stress in the rest of the drivetrain.
Is a higher axle ratio better?
It’s a ratio that represents the number of revolutions the driveshaft must make to spin the axle one full turn. The higher the ratio, the higher the performance. The lower the ratio, the higher the fuel economy.