Schedule I Available Combinations(1) REMIC Securities MX Securities Class Original Class Principal Balance or Class Notional Balance Related MX Class Maximum Original Class Principal Balance or Class Notional Balance(2) Principal Type(3) Interest Rate Interest Type(3) CUSIP Number Final Distribution Date(4) Increased Minimum Denomination(5) Security Group 1 Combination 1 LA .................. $246,000,000 LN $366,704,000 SEQ 5.50% FIX 38373YBQ6 July 2031 N/A LE .................. 36,080,000 LG.................. 32,800,000 LH.................. 13,120,000 LM.................. 38,704,000 Combination 2 LG.................. $  32,800,000 LT $  84,624,000 SEQ 5.50% FIX 38373YBR4 July 2031 N/A LH.................. 13,120,000 LM.................. 38,704,000 Combination 3 LE .................. $  36,080,000 LU $120,704,000 SEQ 5.50% FIX 38373YBS2 July 2031 N/A LG.................. 32,800,000 LH.................. 13,120,000 LM.................. 38,704,000 Combination 4 LA .................. $246,000,000 LB $282,080,000 SEQ 5.50% FIX 38373YBT0 May 2028 N/A LE .................. 36,080,000 Combination 5 LA .................. $246,000,000 LC $314,880,000 SEQ 5.50% FIX 38373YBU7 August 2029 N/A LE .................. 36,080,000 LG.................. 32,800,000 Combination 6 LA .................. $246,000,000 LD $328,000,000 SEQ 5.50% FIX 38373YBV5 February 2030 N/A LE .................. 36,080,000 LG.................. 32,800,000 LH.................. 13,120,000 B-80