What rear end gears should I use?
If it’s a daily driver, chances are you’ll want to keep your gear ratio at 3.23 or below for optimal performance and lower cruising RPMs. For street and strip applications, a popular choice ranges between 3.42s and 3.90s, giving you that extra oomph on the track while maintaining a tolerable cruising RPM on the street.
How do I identify my Mopar rear end?
The easiest way to identify an axle is to look at the cover on the carrier housing:
- 7-1/4″ has a 9 bolt rear cover. weakest.
- 8-1/4″ has 10 bolts, evenly spaced. The cover is almost perfectly round.
- 8-3/4″ has no rear cover.
- 9-1/4″ has a 12 bolt rear cover.
- 9-3/4″ has a 10 bolt rear cover.
What does changing rear end gears do?
More aggressive gearing creates a quicker car but not a faster car. A gearing change will have a noticeable affect on your car. If you swap in taller rear gears, you can gain some top-end speed, making your car faster, but you’re going to be a bit slower leaving from a stop.
What gear ratio is best for fuel economy?
For instance, a 3:31 gets better fuel economy than a 3:73. On the other hand, a 3:73 or perhaps a 4:10 will tow much more, while fuel economy greatly drops. The most popular rear end ratio in trucks today is the 3:55, which sort of averages towing power and fuel economy.
Is 3.55 a good gear ratio?
For example, a truck equipped with 3.55:1 axle gearing will accelerate faster than one equipped with a 3.31 axle ratio. 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.
Is 3.25 a good gear ratio?
3.25s are a good all around gear.
What’s the best gear ratio for highway driving?
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. “Getting into the mid- and upper-threes is starting to get more unusual these days.”
Are 4.11 gears good?
4.11:1 is a “lower” gear ratio, meaning you have more torque, lower top speed, and you will generally consume more fuel. Usually people put 4.11:1 gears in trucks to be used off-road for the extra torque and the better “crawling” capabilities.
Can I run 35s with 3.73 gears?
Well-Known Member. You can do it but it’s definitely not ideal. The ratios with a 5.13 first on a 3.73 rear end and 35’s (your proposed setup) is very slightly taller than what a stock 6MT Tacoma is in first gear so it’s not like you’re going to be causing massive wear getting started.
Are 4.56 gears good for highway?
Often overlooked, a set of gears with the right ratio can transform a vehicle from a commuter to a powerhouse. That’s why I run a 4.56 gear ratio with 35″ tires. This gives me decent fuel efficiency at highway speeds, and enough low end power to throttle through difficult obstacles.
What gear ratio should I use for 35 inch tires?
Gear Ratio And Tire Size Calculator
| 3.31 | 5.71 | |
|---|---|---|
| 34″ | 2126 | 3668 |
| 35″ | 2065 | 3563 |
| 36″ | 2008 | 3464 |
| 37″ | 1954 | 3370 |
What do 4.10 gears do?
We have something else to consider – Engine RPM. Using the same 4.10 gears, an engine will have to spin 4.10 times to turn a rear wheel once whether you’re going 10 miles per hour or 100. This means the engine has to work really hard at faster speeds and in fact, your top speed may be very low.