If there are any pdf's on the 4R's or others, I sure don't know about it.
I have the operation and maintenance manual (form # 8719C) for the 4R/5R and although it states the weight oils to be used it does not have the usual capacity listing. I'd use the 8U/9U quantities.
From a universal fluids chart these capacities are shown for the
4R/5R
Air cleaner 2-1/4 qts
Crankcase 22 qts
FI pump 1 qt
Radiator 12-1/4 gallons
Fuel tank 48 gallons
Pony air cleaner 1-1/2 qts
Pony crankcase 1-1/2 qts
Pony clutch housing 1/2 qt
Pony fuel tank 5 qts
Final drive ea. 11 qts
Transmission 36 qts