Quick Answer: How Do I Know What Axle I Have?

Where do I find my axle code?

There’s no question, the easiest way to identify the axle and gear ratio in your truck is from the door sticker.

If you open the drivers door and look at the door jamb, you’ll see a sticker like the one shown below: You’ll see that the area labeled (F) is for the Axle Code..

Will VIN number tell me gear ratio?

The vehicle identification number (VIN) is a 17-digit code that is used to identify and track every automobile produced. Each number and letter contained within a VIN reveals information about the vehicle, such as the make, model, production year and engine size. … The VIN will not give you gear ratios in most cases.

How do you read axle tags?

The BOM will identify the model number, the gear ratio, the type of differential, and all component parts. Traditional BOM’s are 6 digits followed by 1 or 2 digits and start with the numbers 60 or 61. On some tags, the first 2 digits don’t appear on the tag, but they must be used to identify the axle.

How do I identify my GM rear end?

The rear cover’s shape and the number of bolts are identifying features for GM rear differentials. The round 10-bolt cover with a bulge for the ring gear identifies this axle assembly as an 8.5-inch 10-bolt. The two lugs on the lower case at the 5 and 7 o’clock positions are also identifying features.

How can I tell what gear ratio I have without pulling cover?

So an easy way to determine your actual gear ratio is to check the tag attached to the differential cover by the cover bolts. On the tag there should be some numbering such as 3.54 or 3.73, either of those numbers will give you the stock axle ratio.

How do I know what rear axle I have?

It’s worth noting that rear axles can sometimes be positively identified by a casting number and date stamped on the differential cover or axle tube. However, road debris, dirt, grime, and general age can obscure these numbers.

How do I know what Ford Axle I have?

The differential carrier tag contains the Dana model number and is located next to the driveshaft mount, facing forward on the passenger side of the housing. The model number is located on the top right hand corner of the tag, J210-S, for example. Locate the identification tag on Ford manufactured rear end units.

How do I know what gear ratio I need?

To determine the vehicle’s overall First gear ratio we simply multiply the First gear ratio by the rear axle ratio (e.g., 2.48 x 4.10 = 10.17:1).

Are 3.31 gears good for towing?

“The 3.31 might be capable of towing the trailer. But if you are towing the majority of the time, you probably want the 3.55 because it will tow better and provide better fuel economy loaded.” Start with the total combined weight of the vehicle. … Note that pickup tow and haul ratings are listed by axle ratio.

What does the 8th digit in a VIN number mean?

The 8th Eighth Digit in the VIN Vehicle Identification Number Indicates Engine.