I'd like to perform routine maintenance tasks on my 2003 Silverado. One thing the owner's manual says to do every once in a while is check the level of the manual transmission fluid. The plug looks sort of like a giant recessed cap screw that accepts a hex key. I'll measure it exactly later but it looks I'd need a giant hex key about 3/4" across, although I'll bet it's a metric size.
What do you call the bit that will get this out? Looked in JC Whitney
--nothing.
--zeb