2001 Denali oil and antifreeze leak

I got a 2001 Denali with the 6.0l. It seems to be leaking engine oil to the rear of the oil pan on both sides. It has residue where the oil cooler lines are at, by the drain plug, under the bell housing and around the starter. Also, I noticed there was some antifreeze on the right side axle towards the right front of the motor. I can't see any signs of the water pump or thermostat leaking. Does anybody know where either of these could be leaking from?

I would clean up all the residual oil. Get some really cheap baby powder and starting towards the top, sprinkle all around. It will show a "snail trail" to narrow the leaks down.