We recently reached out to the guys in Summit Racing’s renowned tech department—the largest full-time staff in the industry—to identify and answer five common tech questions they hear on a consistent basis. With help from Summit Racing’s tech advisors and other industry experts, we’ll answer those questions here at OnAllCylinders. Today’s topic: transmissions. The specific question: “What type of do I have?” It’s a basic question, but according to Summit Racing technical department supervisor Norm Koval, it’s a topic that comes up quite often among customers. It’s also a key question central to your vehicle’s performance, and it needs answered before you can proceed with a variety of performance or maintenance projects.
We have all the confidence in the world that you’ll be able to distinguish between a basic automatic or manual tranny. Now, with help from Koval and the tech staff, we’ll help you figure out which specific automatic or manual transmission plants your vehicle’s rear wheels.
Gm Manual Transmission Serial Numbers
Gm Manual Transmission Serial Number Lookup
We’ll start with common. Automatic Transmissions Some transmissions may have a code stamped into their case or a tag riveted to them. According to Koval, the easiest way to identify an automatic transmission, though, is by shape. “Almost all have their own shape and pan bolt design,” Koval said. “Some are square; others are shaped like Louisiana or Texas or some other comparable shape.” We compiled a slide show of specific pan shapes and matched them up to their automatic transmission counterparts. Find your pan shape—and ultimately your automatic transmission—in the images below. Another way to determine your transmission is by measuring the overall dimensions.