[IT NOT EXIST IN REAL LIFE]
JM S-series is a fiction truck but Rebadged Mack Granite MHD it is shares
same cluster and same parts it is have 500 hp and class 7 to 8
it is based on Mack Granite MHD and It have a JM 3500 series trans
(fiction trans) inside of the JM S-series.
this is inside of