<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM 10-Q FILING
FOR SIX MONTHS ENDED 9/27/98 AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO
SUCH FINANCIAL STATEMENTS.
</LEGEND>
<RESTATED> 
<MULTIPLIER> 1,000
       
                                                  
<PERIOD-TYPE>                   6-MOS                   6-MOS
<FISCAL-YEAR-END>                          MAR-31-1999             MAR-31-1998
<PERIOD-START>                             APR-01-1998             APR-01-1997
<PERIOD-END>                               SEP-27-1998             SEP-28-1997
<CASH>                                          23,398                  86,608
<SECURITIES>                                       388                     378
<RECEIVABLES>                                  207,863                 190,294
<ALLOWANCES>                                       127                     130
<INVENTORY>                                     46,752                  59,233
<CURRENT-ASSETS>                               322,335                 381,194
<PP&E>                                         526,054                 524,111
<DEPRECIATION>                                 199,774                 182,394
<TOTAL-ASSETS>                                 871,183                 939,495
<CURRENT-LIABILITIES>                          223,549                 257,824
<BONDS>                                        190,976                 221,108
<PREFERRED-MANDATORY>                           14,993                       0
<PREFERRED>                                          0                       0
<COMMON>                                           121                     131
<OTHER-SE>                                     241,331                 249,254
<TOTAL-LIABILITY-AND-EQUITY>                   871,183                 939,495
<SALES>                                        515,319                 518,593
<TOTAL-REVENUES>                               515,319                 518,593
<CGS>                                          424,654                 429,044
<TOTAL-COSTS>                                  424,654                 429,044
<OTHER-EXPENSES>                                 3,732                   4,674
<LOSS-PROVISION>                                     0                       0
<INTEREST-EXPENSE>                              10,876                  14,937
<INCOME-PRETAX>                                 38,199                  30,578
<INCOME-TAX>                                     5,730                       0
<INCOME-CONTINUING>                             32,469                  30,578
<DISCONTINUED>                                       0                       0
<EXTRAORDINARY>                               (14,627)                       0
<CHANGES>                                            0                       0
<NET-INCOME>                                    17,842                  30,578
<EPS-PRIMARY>                                     1.42                    2.35
<EPS-DILUTED>                                     1.38                    2.28