GM transmission owners, this 27-spline slip yoke is exactly what you need if you're dealing with driveline vibrations or doing transmission work. It fits a huge range of GM transmissions including TH-350, 700R4, 4L60E, 200-4R, Powerglide, and even T-5 and T-56 manual transmissions. The 27-spline count matches the output shaft on these transmissions perfectly, and the 6.75-inch length with 1.502-inch hub diameter works with standard driveshafts. It uses common U-joints like the 5-3147X or 3R51-20, so finding replacement U-joints is easy. The fully splined design ensures smooth operation, and the lack of vent hole makes it ideal for various applications. If you're experiencing vibration issues, worn splines, or doing a transmission swap, this yoke provides a direct OEM replacement that'll get your driveline running smoothly again. The construction is solid, and it comes with a 1-year unlimited mileage warranty for peace of mind. Just make sure your transmission has the 27-spline output shaft (most GM automatics from the 70s through 90s do), and this should drop right in. For the price, it's way cheaper than dealership parts and the quality is definitely there for street use and moderate performance applications.