someone identify this engine/trans issue

[DrThunder]

I see no oil pan crack. i would say rear main seal but grinding noise? and that puddle has something else in it...

[wannabejeep]

ya know i was even debating giving this body/engine/trans to you if i end up parting it

oh man that'd make me super happy.

[Burton58]

I see no oil pan crack. i would say rear main seal but grinding noise? and that puddle has something else in it...

yes indeed, coolant. could be a freeze plug leak. def isn't empty on coolant but is low

[crosbike]

My mistake. All that grime made the pan lip look more like a crack.

[Pedro]

damn. you were a month too late on a 99 4.0

[CntStpTheStnk06]

if u part it i would be interested in some parts hope u can fix er tho.