What is a GT4 gear ratio?

The 19% reduction in the GT4 final drive ratio (from 3.89 to 4.62) will have a similar effect on the GT4’s performance, improving 0-60 time by approximately 4/10ths of a second and improving lap times on most longer/fast US tracks by at least a second.

What is the best gear ratio for pulling?

A 3.73 ratio is suitable for regular light towing. If you plan on towing a fifth-wheel trailer or anything heavier than 5,000 pounds, you should consider a 4.1 axle ratio. A 4.1 ratio allows a towing vehicle to start moving without as much throttle.

How do I find my GM gear ratio?

Count the teeth on the small gear in the forward part of the axle housing, called the pinion gear. Count the number of the teeth in the big ring gear attached to the differential. Divide the number of teeth on the pinion into the number of teeth on the ring gear. This is the gear ratio.

What does G80 mean?

Often referred to as the G80 for its order code, the rear axle locks automatically if one wheel starts to spin, enabling both rear wheels to propel the truck. The added traction lets a 2WD pickup to go places traditionally thought of as 4×4 territory, and further enhances the capability of 4×4 pickups.

Is 3.31 a good gear ratio?

Normally, the 3.31 would get you better gas mileage, on highway. But, with the 3.55 you will get a bit more pulling power so less time at higher RPM to get your trailer moving and when going uphill. If most of your towing is flat highway, the 3.31 should do you fine.

Can you tow with 3.21 gears?

It comes standard with a 3.21 ratio and offers optional 3.55 and 3.92 ratios. The standard 3.21 axle ratio then gets you a maximum tow rating of 8,440 pounds. Go with the 3.92 gearing and the tow rating jumps up to 11,540 pounds — a massive 3,100-pound difference.

Is a 3.42 gear ratio good?

Lower numeric axle ratios may help reduce how much an engine has to work while cruising at highway speeds, and can potentially help improve fuel economy. For instance, the 3.42:1 ratio included on many Canyon V-6 and Sierra 1500 models offers a good all-around blend.

What are 3.31 gears good for?

What is a 3.31 ratio regular axle?

Consider that with a 3.31 axle ratio, the driveshaft turns 3 1/3rd times for every revolution of the rear wheel. With a 4.30 ratio, it turns 4 1/3rd times for every revolution of the rear wheel. The numerically higher gear ratio (in this case, 4.30) increases wheel torque and improves acceleration from low speeds.

How do I find my rear end gear ratio GMC?

Identify your GMC or Chevrolet rear end gear ratio by the RPO Codes, usually located on the placard labeled “Service Parts Identification” inside the drivers door panel or glove box.

What happens to the flyweight when the gearbox is rotating?

If the rotating speed of the ring gear and differential case assembly is high enough, the latching bracket will pivot due to centrifugal force. This will move the flyweights so that no locking is permitted. During vehicle driving, this happens at approximately 32 km/h (20 mph) and continues at faster speeds.

How does a side gear clutch work?

This movement of the cam side gear pushes the thrust block which compresses the right-hand side gear clutch pack. At this point, the force of the self-energizing clutches and the side gear separating force combine to hold the side gears to the differential case in the locking stage. The entire locking process occurs in less than 1 second.