Enhance the look of your Peterbilt shifter shaft with our Cadmium Orange Shifter Shaft Extensions. Available in 6, 9, 12, and 18-inch lengths, these extensions feature a durable cadmium orange finish and a 1/2 inch 1 13 Unified National Coarse (UNC) thread for easy installation. The 1-inch long thread ensures a secure fit, and the 3/4-inch diameter shaft is designed to fit the Peterbilt shifter shaft (UP21740). Sold individually, these shaft extensions are a practical and stylish addition to your truck's interior.