Gm 12 Bolt Truck Rear End Casting Numbers
When it comes to building a high-performance truck, one of the most important components is the rear end. The GM 12 bolt truck rear end is a popular choice for many truck enthusiasts due to its durability and strength. However, not all 12 bolt truck rear ends are created equal. In this article, we will discuss the importance of casting numbers and how to identify them.
What are casting numbers?
Casting numbers are unique numbers assigned to a specific component during the manufacturing process. They are used to identify the type of component and the date it was produced. In the case of the GM 12 bolt truck rear end, the casting number is located on the passenger side axle tube.
Why are casting numbers important?
Identifying the casting number on your GM 12 bolt truck rear end is important for several reasons. First, it allows you to determine the year and model of the truck it was originally installed in. This information can be helpful when trying to find replacement parts or when selling the rear end.
Second, casting numbers can also indicate the gear ratio and positraction options that were originally installed. This information is important when upgrading or modifying your rear end for better performance.
How to identify GM 12 bolt truck rear end casting numbers
Identifying the casting number on your GM 12 bolt truck rear end is a fairly simple process. The casting number is located on the passenger side axle tube, just behind the backing plate. It is usually a combination of letters and numbers that can be difficult to decipher without a reference chart.
One of the best resources for identifying GM 12 bolt truck rear end casting numbers is the Chevrolet by the Numbers book series. These books provide detailed information on all GM vehicles and their corresponding casting numbers. They are a valuable resource for any truck enthusiast.
Conclusion
Identifying the casting number on your GM 12 bolt truck rear end is an important step in building a high-performance truck. It allows you to determine the year and model of the truck it was originally installed in, as well as the gear ratio and positraction options that were originally installed. With this information, you can make informed decisions when upgrading or modifying your rear end for better performance.