DRIVETRAIN POWER LOSS .

Need an accurate Drivetrain power Loss figure thru A727 trans with Loose 5500 stall converter & Dana 60 4:56 Trak-Loc 30 inch tall slicks. Have seen estimate numbers from 10 to >37 % !! ..30 % seems/feels about right to me. Thx for any help.
Author: 70rcode