The purpose of the detailing EDM is to f ine tune a previously ameliorated design. First, in order to determine the best fillet radius for formability, forging simulations are conducted using commercial software. Once the fillet dimension is ascertained, the 3-D model is generated and maximum stresses determined for a trial force. Two different commercial programs were used to determine the three-dimensional stresses. The only statistical quantities involve the loading (Gaussian distribution), the material s trength in the analytical criteria for failure (ACF), and possibly, the boundary conditions in the 3-D models. This paper considers the ACF to be the resistance to fatigue fracture under complete reversal of loads at 5x10 8 cycles. The paper overviews three different methods of combining stochastic behavior with FE analysis, and presents a methodology for using the interference method with non-symmetrical distributions. The EDM are then presented for the three product criteria of forging formability, prime cost and 3-D reliability with respect to the selected ACF.