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U-JOINT 	Universal Joint                   

U.S.G.  	US Gallon                         

UB      		Underbody                         

UCL     	Upper Control Limit               

UDC     	Upper Dead Center                 

UE      		Under Engine                      

UFV     	Uncontrolled Fuel Volume          

UIC     	Universal Ignition Control        

UJ      		Universal Joint                   

UNARM   	Unarmored                         

Unlat   	Unlatched                         

US      		Under Size                        

USP     	US Patent                        

UV      		Ultra Violet                     

UVS     	Underhood Vent System