You are looking at a used rear half of a rear drive shaft from a 76 Ford F150 4wd truck with 8’ bed. This truck was 4 speed with 205 transfer case. Shaft measures 19 1/8” from center of cap to center of cap, 20 ½” from outer loop to outer loop or total length as shown. Measure your needs before buying. U-joints are used but look OK. Straight. Never wrecked. Ready to use.