View 2 Photos View 0 Videos Meritor-Rockwell Rear Differential for a 2005 Western Star 4900 SA Recently Updated Contact for price 2005 WS 4900SA TRIDRIVE MERITOR RT46-169 WIDE TRACK, 4.30 RATIO, ALL LOCKS, HD AIRLINER SUSPENSION, 69000 LBS, Serial#: NA, Ratio: 4.30, Casting#: NA ConditionUsedRear End4.30 ratioFits To Make(s)Western StarFits To Model(s)4900 SAWill Fit Year(s)2005Stock Number3788-WS-4 MLS Number13348709CategoryDifferentials, Rear Last Updated3/11/2026 LocationSTURGEON COUNTY, AB, Canada Sold ByBadger Truck Parts Ltd. (855) 624-___ SHOWNUMBERCall Seller Email Seller Save More Info