Quick Answer

How strong is a GM 14-bolt?

GM’s Strong &amp
Plentiful Axle

First appearing in 1973, the 14-bolt is one of the most used rear axles in the General Motors stable. Found under ¾- and 1-ton GM trucks, vans and SUVs, the 14-bolt received a max torque rating of 6,242 pounds.

Is a 14-bolt A 1-ton axle?

The 14-Bolt Is The Ford 9-Inch Of 1-Ton Trucks

Every diesel-powered pickup sold in the United States for the last 10 years has a full-floating rear axle.

Is a 14-bolt semi-float good?

Still, the 14-bolt semi-float is a solid axle for a lot of applications. Compared to a GM 10-bolt axle (for example), a semi-float 14-bolt is a nice upgrade. You can spot a semi-float 14-bolt axle by counting the lugs (if it’s a six lug wheel, it’s a semi-float), or by looking at the wheel surface.

Are all 14 bolts the same?

Over the years, there have been millions of 14 bolt axles produced. And, of course, they weren’t all the same. GM 14 bolt axles were available in semi-float and full-float versions, and there are two types of hubs found on 14 bolt axles. Also, two different types of drums were used.

What is a 14 bolt rear axle?

Gm 14 Bolt Axle, Differential Specs

The General Motors Corporate 14 bolt is a heavy duty, full floating rear axle used in 1973 to 2001 Chevrolet and GMC pickups. It is not to be confused with the smaller, semi floating 14 bolt axle, which uses a 9.5″ ring gear and is built for 3/4 ton applications.

How heavy is a 14 bolt axle?

The typical 14 bolt axle weighs about 550 pounds.

What is a 14 bolt full floater?

GM 14 Bolt Differential Explained – How to Identify

How wide is a GM 14 Bolt?

GM 14-Bolt Specs

Pinion Bearing Preload (Inch lbs) 25 – 35 (new bearings) 5-15 (reused bearings)
Pinion diameter 1.750″ x 30 splines
Carrier Break 4.10 / 4.56
Approximate Weight (lbs) 550 with brake drums 450 without brake drums
Width – WMS-WMS (inches) SRW/DRW 67″ C&C DRW 63″

What trucks have a 14 bolt rear end?

The 10.5″ Corporate 14 Bolt Differential is a heavy duty differential found on many 1973-2013 Chevrolet and GMC trucks and SUVs, as well as certain versions of the Cadillac Escalade. Additionally, this differential is found on Chevrolet Express and GMC Savanna vans produced from 1973 to current day.

How do I tell what gear ratio my 14-bolt is?

Carefully count the number of full revolutions the driveshaft makes. This is your gear ratio. In other words, if the drive shaft turns 3 &amp
3/4 turns, you probably have a 3.73 gear ratio.

What is a full float rear-end?

In a full-floating axle, the axle is not attached to the axlehousing at all
it is allowed to “float” inside the axlehousing
. A tubular shaft is mounted to the end of the housing and acts like your front spindle, only it is hollow to allow the axle to meet up with the wheel assembly.

What is a Dana 60 rear-end?

The Dana 60 is a Salisbury-type rear-end, meaning the differential carrier removes from the rear of the axle instead of the front. It can be identified by its 10-bolt rear cover, which appears to be lying on its side.

What does a full floating axle mean?

A full floating axle consists of a wheel hub assemble that is separate from the axle shaft. A spindle bolted to the axle tube supports the wheel hub by means of a pair of wheel bearings. Therefore, the weight of the vehicle and its cargo is transfered to the axle tube, rather than the axle shaft itself.

What does a Dana 80 come in?

ID A Dana 80 Rear Axle in Chevy, Dodge Ram, or Ford Truck IDN-126. Was: Dana 80 Rear Axles have been in production since the 1988 Model Year. They have been used in Chevy/GMC 1992-2002 , Dodge(1994-2002), and Ford (1988-current) trucks vans, and motorhome chassis.

How do I identify my GM differential?

Information about Differentials in GM vehicles can usually be obtained by looking at the RPO or “Regular Production Option” codes contained in the Service Parts Identification tag in the glovebox. Whenever possible, reference the tag numbers when ordering parts for your Differential.

How wide is a 14 bolt rear end?

14 Bolt Axle Dimensions

WMS to WMS width Axle tube diameter
SRW 68″ 3.375″
DRW 72″ 3.5″
C&C DRW 63.5″ 3.5″
SRW Van 70″ 3.5″

What is the strongest rear end?

Dana 60 Rear End Assemblies

If you want a big brute of a rear end under your car, look no further than a Dana 60. Even in the heyday of muscle cars, Dana 60 rear differentials were renowned for their strength, along with their difficulty to locate.

What did a Dana 70 come in?

The Dana 70 rear axle was first used in the Dodge W300 in 1958. The Dana 70 started out using 10 spline pinions and 23 spline axle shafts. The later, more current, Dana 70 axles use 29 spline pinions and 32 or 35 spline axle shafts.

What vehicles came with a high pinion Dana 60?

The Dana/Spicer Model 60 is an automotive axle manufactured by Dana Holding Corporation and used in OEM pickup and limited passenger car applications by Chevrolet, Dodge, Chrysler, Jeep, Ford and Land Rover.

How do I identify a Dana 60?

Many Dana axles have the model ID cast into the fins or centersection. Look for a “44” or “60” cast into the reinforcement ribs. The number can usually be found on the lower right side rib below the differential cover, but it may also be found on other ribs or on top of the main cast structure.

How much fluid does a 14 bolt hold?

The gear oil capacity of a 14 bolt axle is either 3.6 quarts (full float) or 2.75 quarts (semi-float). However, when it’s time to fill the axle, don’t try and measure out the fluid. Instead, just fill the differential slowly, and stop pumping gear oil in when fluid comes out the fill hole.

How many spline is a 14 bolt axle?

The 14-bolt axleshaft is still 1 1/2 inches, but has a 30-spline cut with a unique spline pitch. The 14-bolt axles typically have drum brakes from the factory, save for the newest late-model disc-adorning versions, but obviously there are a lot of guys out there upgrading to discs on the older ones.

How wide is a GM 10 Bolt?

Inside the 8.2-inch 10-bolt, the ring-gear bolts have 9/16-inch socket heads with 3/8-24 left-hand threads. The pinion diameter is 1.438 inches, and has 25 splines. Like all Chevy 10-bolts, the axles are retained by C-clips on the inner end of the axle shaft inside the carrier.

How wide is a Dana 60?

Dana 60 Specs

Years Produced: 1955 – current
Full/Semi Float: Full floating front/rear differential
GAWR: up to 6,500 lbs
Overall Width: 69.339″ flange to flange
Ring Gear: 9.75″

What is the difference between a full floating and semi floating axle?

The axle shaft also rides on a large roller or ball bearing out at the end of the axle housing. For a full-floating system, the axle shaft only serves to transmit the rotational torque from the differential out to the wheel. It does not carry the weight of the vehicle as a semi-floater does.