The Chrysler 8.25″, also known as the Corporate 8.25″, is the 29 spline steel rear axle found in most Jeep Liberties. In 2003, the rear drum brakes were replaced with discs. Strength wise, the Chrysler 8.25″ fits between the Dana 35 and Dana 44.
Do diff covers make a difference?
In addition to providing access for changing gear lube, differential covers help dissipate heat that can damage differentials, and they protect gears from contaminants like dirt and water, as well as rocks and other large obstacles encountered when off-roading.
What gear ratio does a Chrysler 8.25 have?
Differential: Chrysler 8.25 Inch. Location: Rear. Rotation: Standard. Gear Ratio: 3.21.
What does a upgraded diff cover do?
An upgraded differential cover allows for you to carry more gear fluid oil. This extra fluid equals greater diff cooling. An aftermarket diff cover can also provide heavy, duty protection for your axle parts. This is a common impact point especially for those that like to take their rig off road.
What has a Chrysler 8.25 rear end? – Related Questions
Are aftermarket rear diff covers worth it?
Benefits. Strength: Having a stronger differential cover can provide extra safety for pickup owners with high-horsepower engines or for those who head off-road. Many aftermarket covers are thicker than factory covers, sporting additional cross bracing for improved strength and cooling.
Are aluminum diff covers good?
The first being the material itself: aluminum covers will expend heat very well. Aluminum also has a weight advantage. Compared to steel or iron ones, diff covers made of aluminum are also significantly lighter. A second way that a cover can help keep things cool is by design.
Is a higher differential better?
The lower the number, the faster the car will go with the same number of engine revolutions. The higher the number the better the car will accelerate, but at the expense of high speed cruising.
What are the benefits of changing differential fluid?
The presence and timely change of your differential fluid gives the following benefits: Better road grip. Your vehicle becomes more responsive. Rotations and turns are smoother.
What is the benefit of an open diff?
Advantages: Open differentials are the original solution to a universal problem. They allow the wheels to turn independently of each other, preventing wheel hop, vehicle instability and excess tire wear.
What does a higher differential do?
A Higher diff setting increases the differential resistance limiting the speed differential in the wheels. With it at 100 then the wheels act much closer to a locked diff, meaning both wheels would get the same amount of power regardless of which has more grip, thus they both spin at the same speed.
What gear ratio is better for torque?
Gear ratios can be boiled down to a single statement: Higher ratios (with a lower numerical value) give better torque/acceleration and lower ratios allow for higher top speeds and better fuel economy. Higher ratios mean the engine has to run faster to achieve a given speed.
Which gear 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.
What is a good diff ratio?
To restore performance you must change the gear ratio to compensate for the change in tire size. If you originally had 3.07 gears you need a ratio that is approximately 17% lower, such as 3.55. If you want to increase off road performance you might want a 4.10 or lower ratio.
What axle ratio is best for speed?
If you are looking for quicker, more nimble performance, an axle ratio of around 3.55 will be ideal. This will cause the engine to make more revolutions per minute and will require less of the throttle to get up to speed.
What axle ratio is better for mileage?
If getting the best fuel economy is priority, then choose the lowest numerical number offered, such as 3.08, 3.23 or 3.31. This applies to highway driving; city driving mpg isn’t really affected by the axle ratio. If you do a mix of both, go with the “standard” axle ratio offered by the manufacturer.
Are 3.73 or 4.10 gears better?
3.73 VS 4.10 Ratio
| 3.73 Ratio |
4.10 Ratio |
| Not as fast off of the line |
Quicker Off The Line |
| Lower Torque |
Higher Torque |
| Better Gas Mileage |
Decreased Gas Mileage |
| Higher Top Speed |
Lower Top Speed |
What is the hardest gear ratio?
The Hardest Gear
This is expressed as 4.55 : 1 meaning that for every 1 turn I make of the pedals at the front, I will turn the back wheel 4.55 times. This is the gear I would use on the flat. It is going to take quite a lot of effort to get it moving, but when I do I will move quickly.
What do 3.91 gears do?
The 3.91 ratio ring and pinion provides a 13% increase in effective rear wheel torque multiplication compared to the factory 3.45 ring & pinion (MT) and a 20% increase in effective rear wheel torque multiplication compared to the factory 3.27 ring & pinion that is found on the AT equipped Camaro SS.
What is a good gear ratio for highway?
For on-highway linehaul, the range tightens to a fuel friendly 2.26 through 3.42 for the most common ratios. “For on-highway, direct drive, it starts all the way down at 2.26 and up to 3.08 or larger,” Garrison says.
What gear should you be in at 40 mph?
Second gear—10 to 20 mph. Third gear—20 to 30 mph. Fourth gear—30-40 mph. Fifth gear—40 and above if you drive a five-speed.