L3600, front axle bevel gear case. The bearings need replacing, but I haven't been able to pull them. Still working on that. In the meanwhile, I'm looking at finding a used case instead. The part number I need is TA040-12803 for serial numbers > 57800. My serial number is 58003 (1997 model, I think). I have found at a reasonable price a TA040-12802 which is for serial numbers < 57799. Any way to determine if the older part number will work?