You can downlaod the manual here on this site somewhere. I can remember the thread title. But you start from the center and work your way out to the ends.

 

If I didn't get a response that was my plan. Just like the heads, center to edge alternating front and back. 10mm bolts = ??? 30 ft/lbs ???

 

I have a 2009 Challenger manual. What enginemsize do you have?

 

I have the 5.7L

 

3. Install a new oil pan gasket/windage tray assembly.4. If removed, reinstall the oil pump pickup tube with new o-ring. Tighten tube to pump fasteners to 28 N·m (250 in.lbs.).​

NOTE: The horizontal M10 fasteners are 5 mmlonger in length, and must be reinstalled in originallocations.NOTE: New M6 fasteners must be used when reinstallingthe oil pan. Do not reuse the old M6 fasteners.​

5. Align the rear of the oil pan with the rear face ofthe engine block, and install the M10 and M6 oilpan fasteners finger tight. Using the followingtorque sequence, torque the M6 mounting bolts to5 N·m (44 in.lbs.).6. Using the following torque sequence, torque theM10 oil pan fasteners to 54 N·m (39 ft.lbs.).7. Using the following torque sequence, torque the​

M6 oil pan fasteners to 12 N·m (106 in.lbs.).

 

NOTE: New M6 fasteners must be used when reinstalling
the oil pan. Do not reuse the old M6 fasteners.
5. Align the rear of the oil pan with the rear face of
the engine block, and install the M10 and M6 oil
pan fasteners finger tight. Using the following
torque sequence, torque the M6 mounting bolts to
5 N·m (44 in.lbs.).
6. Using the following torque sequence, torque the
M10 oil pan fasteners to 54 N·m (39 ft.lbs.).
7. Using the following torque sequence, torque the
M6 oil pan fasteners to 12 N·m (106 in.lbs.).