5.  To the PAC III Classes, in the same manner and order of priority described in Step 3 above, but without regard to their Aggregate Scheduled Principal Balance, until retired 6.  To QB, without regard to its Scheduled Principal Balance, until retired 7.  To the PAC I Classes, in the same manner and order of priority described in Step 1 above, but without regard to their Aggregate Scheduled Principal Balance, until retired SECURITY GROUP 2 The Group 2 Principal Distribution Amount will be allocated, concurrently, to FA and LO, pro rata, until retired SECURITY GROUP 3 The Group 3 Principal Distribution Amount will be allocated, sequentially, to CA, CB, CD and CG, in that order, until retired SECURITY GROUP 4 The Group 4 Principal Distribution Amount will be allocated in the following order of priority: 1.  Concurrently, to UO and US, pro rata, until reduced to their Aggregate Scheduled Principal Balance for that Distribution Date 2.  To BP, until retired 3.  Concurrently, to UO and US, pro rata, without regard to their Aggregate Scheduled Principal Balance, until retired 4.  To BT, until retired Scheduled Principal Balances: The Scheduled Principal Balances or Aggregate Scheduled Principal Balances for the Classes listed below are included in Schedule II to this Supplement. They were calculated using, among other things, the following Structuring Ranges: Class Structuring Ranges PAC I Classes ND, NF, NO and OE (in the aggregate) .................................... 100% PSA through 300% PSA PAC II Class QB ........................................................................................................ 120% PSA through 300% PSA PAC III Classes BS, BZ, CS, OB and OC (in the aggregate) .............................. 214% PSA through 300% PSA Scheduled Classes UO and US (in the aggregate)*  .................................................. 238% PSA through 249% PSA *  Classes UO and US have no Effective Range. Accrual Class:  Interest will accrue on the Accrual Class identified on the front cover of this Supplement  at  the  per  annum  rate  set  forth  on  that  page.  However,  no  interest  will  be distributed to the Accrual Class as interest. Interest so accrued on the Accrual Class on each B-15