300 SRT-8 V8-6.1L VIN W (2005)
I ............................................................................................................................................................................................................................. Iron
A .................................................................................................................................................................................................................. Aluminum
Examples:
248FBI .................................................................................................................................................................... Dana 60, Front, Beam Axle, Iron
186FIA .............................................................................................................................................. Dana Super 30, Front, Independent, Aluminum
226RBA ............................................................................................................................................... Dana Super 44, Rear, Beam Axle, Aluminum