How do I know if I have 28 or 31 spline axles?

What is the diameter of a 31 spline axle?

Axles have . 470″ thick flanges with a 5.94″ outer diameter and a 3.06 hub register to center most rotors and drums. 31-spline axle has a 3.150″ O.D.

How much HP can a Ford 9-inch handle?

“They’re good only to 400hp max,” says Tom at Tom’s Differentials. “Anything above that should use today’s beefed-up, redesigned, nodular-iron aftermarket cases. They’re good to 800 hp, if built properly.

Is a Dana 60 stronger than a Ford 9-inch?

The Ford 9-inch pinion is mounted lower in the carrier and has the greatest hypoid offset, which causes it to consume more power to drive it than the Dana 60 or GM 12-bolt. The Dana 60 has so much mass it too consumes a lot of power to drive (although many say it feels slightly less than a 9-inch Ford).

Why is the Ford 9-inch so good?

The Ford 9-inch is desirable because it has a removable carrier, which allows quick rear end changes. Many racers carry an extra carrier assembly with a different rear end ratio so they can try different combinations on the same day while at the track.

Is a Ford 8.8 the same as a Ford 9-inch?

A Ford 9-inch has a ring-gear diameter of, you guessed it, 9 inches closely followed by the 12-bolt at 8.875, with the Mustang rear at 8.80 inches. Another strength consideration is pinion-shaft diameter. Here, the 8.8 and the 12-bolt are identical at 1.625 inches and in fact use the same pinion bearings.

How much horsepower can a Dana 60 handle?

Additionally, the Dana 60 (S60) from Strange comes equipped with their beefy 35-spline alloy axles and carrier that can handle over 1,000 horsepower. A vintage Dana 60 like ours with its stock 23-spline axles and clutch-type Sure-Grip is limited to roughly 700 horsepower of sticky tire, strip action.

Why is it called a 9 inch rear end?

The Ford 9-inch rear end, so named because of its 9-inch ring gear diameter, was manufactured from 1957 to 1987 by the Ford Motor Company and installed in some intermediate and most full-size Ford, Lincoln, and Mercury passenger cars, F-Series ½-ton trucks, and Econoline vans.

What vehicles came with a Ford 9 inch rear end?

How do I know if I have a 9 inch diff?

How can you tell the difference between a 8 inch and a 9 inch Ford rear end?

How do I know my diff size?

What gear ratio is a Ford 9 inch rear end?

The Ford 9 inch rear end also has the widest variety of ratios on the market, Particularly in the 3.0:1 to 5.0:1 range. Ford improved tooth contact of the Ford 9 inch gears by locating its pinion gear lower on the ring gear. This strengthens the whole rear end assembly.

What’s the best rear end gear ratio for street racing?

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.

What gear ratios are available for a 9 inch Ford?

Choice of Gear Ratios: 2.50*, 2.75*, 3.00, 3.25, 3.50, 3.70, 3.89, 4.11, 4.30, 4.56, 4.71, 4.86, 5.00, 5.14, 5.29, 5.43, 5.67, 5.83, 6.00, 6.20, 6.33, 6.50 NOTE: 2.50 and 2.75 are take out gears.

How much weight can a Dana 60 handle?

Dana 60 rear axle

Manufactured in both full float and semi float variations. The semi float axles have GAWR up to 5,500 lbs and the full float axles were rated up to 6,500 lbs.

Is a Ford Dana 60 the same as a Chevy Dana 60?

If there are 7 bolts, then you have a GMC/Chevy or Jeep Dana 60 axle. These axles are all exactly the same. If there are 4 bolts, then you have either a Dodge or Ford Dana 60 axle. These two axles are not identical.