In Vancouver someone is party out a 1996 Explorer with a 302 engine 8.8 rear end and we cannot match any numbers on the housing to find out what gears are in it. The VIN is 1FM0U35T5TUD31890, other numbers on the axle area S619A-R and 73886E03 if this is 4.10 Gearing I would buy it. How do I find out what the gearing is?

89 YJ, 3.5" Black Diamond Lift, 33" tires, 8000lb Warn, 4.0 91 XY engine swap.