Getrag/NV3500 Mainshaft 4WD

The USA Standard Gear ZMGET290-2A Mainshaft is engineered to maintain the smooth operation of your manual transmission, specifically designed for the Getrag/NV3500 gearbox found in 1991-1993 GM Full-Size 4WD vehicles. This essential component ensures reliability and performance for your truck. Key features of this mainshaft include a precise 0.312-inch slot width between the 2nd and 3rd gears, contributing to accurate shifting. It also incorporates single-piece 1-2 synchronizer rings for enhanced durability and longevity. The rear bearing is constructed to be 0.9 inches wide, specifically tailored for the demands of 4-wheel drive systems. This mainshaft is compatible with a range of GM vehicles, including the Chevrolet Blazer (1992-1994), C/K 1500 (1988-1995), C/K 2500 (1988-1995), and Tahoe (1995), as well as the GMC C/K 1500 (1988-1995), C/K 2500 (1988-1995), and Yukon (1992-1995). Owners have reported that replacing a worn mainshaft with the ZMGET290-2A significantly improves the driving experience. One user noted much smoother shifting, allowing for seamless gear transitions even under load. This upgrade is ideal for those who depend on their trucks for various tasks, from heavy-duty work to recreational driving, ensuring the transmission functions optimally.