Help needed with sb 318

Those dipsticks appear to be for car applications with center sump oil pans. As others stated, the truck dipstick for rear sump pan is quite a bit longer. I forgot to measure mine. I guess we know why it came two dipsticks. Previous owner tried to figure it out.
If you have a Dodge truck with a Magnum engine, try inserting that dipstick in this 318. Once you get something long enough to read, just drain the oil, pour in six quarts, and use that for your full mark.