2006 king ranch rear pinion leaking " help

[Ron1978]

Hello , I have noticed that our 2006 with 74,000 on it has started leaking around the pinion area wear the drive shaft hooks to it, then the clear oil is leaking down the pumpkin and dripping on garage floor, not a bad leak yet but the entire bottom of pumpkin was oily, how hard and what do I need to fix it?
What type fluid do I need to add to it to keep it going till I fix it, I believe in OEM parts so any help will be appreciated,

 

[Ron1978]

Just got finished with above, total cost was $70
Fords pinions seal was $14.00
Ford 75-140 syn oil -$23
And a harmonic balancer pulled-$ 28.00

Was not bad , but took awhile due to tight space under truck, stopped the leak and added 4oz of fluid back Fixed !!!
Ford wanted $348. To fix