How do you check trans fluid 2 speed powerglide?

To check the Transmission Fluid in a Powerglide two-speed transmission, first ensure the vehicle is on a level surface and the engine is running. Locate the dipstick, usually found near the back of the engine, and remove it. Wipe it clean, reinsert it fully, and then remove it again to check the fluid level, which should be within the marked range. If the fluid is low, add the appropriate type of transmission fluid through the dipstick tube.