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Inventories
9 Months Ended
Apr. 30, 2012
Inventories [Abstract]  
Inventories
3. Inventories

Major classifications of inventories are:

 

           April 30, 2012                July 31, 2011        

Raw materials

         $ 107,636           $ 104,360   

Chassis

       34,996         46,548   

Work in process

       66,935         48,575   

Finished goods

       23,500         14,179   
    

 

 

    

 

 

 

Total

       233,067         213,662   

Excess of FIFO costs over LIFO costs

       (32,164)         (29,164)   
    

 

 

    

 

 

 

Total inventories

         $ 200,903           $ 184,498   
    

 

 

    

 

 

 

Of the $233,067 and $213,662 of inventory at April 30, 2012 and July 31, 2011, all but $36,408 and $25,530, respectively, at certain subsidiaries were valued on a last-in, first-out basis. The $36,408 and $25,530 of inventory were valued on a first-in, first-out method.