It appears as though I am doing something of a crash course in these trucks; I was going to buy a "replacement" set of gauges for my truck, to replace the faded needles and gauge faces, but just as I was pulling the gauge cluster I realized that the cluster I was grabbing had an oil pressure gauge which went to 550kpa (I'm Canadian; I looked, this is about 80psi), while my oil pressure gauge only reads to 400kpa (roughly 60psi). What year did this change? Or Do the gauges change based on engine or package? My brother was wondering if I had "big block" gauges... if that is even a thing. This is my cluster: The needles and coloured parts on the gauge face are just as faded as they look in this picture. Thanks in advance for any advice and/or information that can be offered.