## Related to *Class X-G Pass-Through Rate*

**Class X-F Pass-Through Rate** The Pass-Through Rate for Class X-F Certificates for any Distribution Date will equal the excess, if any of (a) the Weighted Average Net Mortgage Rate for the related Distribution Date, over (b) the Pass-Through Rate of the Class F Certificates. The Pass-Through Rate applicable to the Class X-F Certificates for the initial Distribution Date shall be the rate set forth in the Preliminary Statement hereto.

**Class X-D Pass-Through Rate** The Pass-Through Rate for Class X-D Certificates for any Distribution Date will equal the excess, if any of (a) the Weighted Average Net Mortgage Rate for the related Distribution Date, over (b) the Pass-Through Rate of the Class D Certificates. The Pass-Through Rate applicable to the Class X-D Certificates for the initial Distribution Date shall be the rate set forth in the Preliminary Statement hereto.

**Class X-H Pass-Through Rate** The Pass-Through Rate for Class X-H Certificates for any Distribution Date will equal the excess, if any of (a) the Weighted Average Net Mortgage Rate for the related Distribution Date, over (b) the Pass-Through Rate of the Class H Certificates. The Pass-Through Rate applicable to the Class X-H Certificates for the initial Distribution Date shall be the rate set forth in the Preliminary Statement hereto.

**Class X-B Pass-Through Rate** The Pass-Through Rate for Class X-B Certificates for any Distribution Date will equal the excess, if any of (a) the Weighted Average Net Mortgage Rate for the related Distribution Date, over (b) the weighted average of the Pass-Through Rates of the Class A-S, Class B and Class C Certificates for such Distribution Date, weighted on the basis of their respective aggregate Certificate Balances immediately prior to the Distribution Date. The Pass-Through Rate applicable to the Class X-B Certificates for the initial Distribution Date shall be the rate set forth in the Preliminary Statement hereto.

**Class X-A Pass-Through Rate** The Pass-Through Rate for Class X-A Certificates for any Distribution Date will equal the excess, if any of (a) the Weighted Average Net Mortgage Rate for the related Distribution Date, over (b) the weighted average of the Pass-Through Rates on the Class A Certificates (other than the Class A-S Certificates) for such Distribution Date, weighted on the basis of their respective Certificate Balances immediately prior to the Distribution Date. The Pass-Through Rate applicable to the Class X-A Certificates for the initial Distribution Date shall be the rate set forth in the Preliminary Statement hereto.

**Class G Pass-Through Rate** With respect to any Distribution Date, a per annum rate equal to the Weighted Average Net Mortgage Rate for such Distribution Date.

**Class C Pass-Through Rate** With respect to any Distribution Date, a per annum rate equal to the Weighted Average Net Mortgage Rate for such Distribution Date.

**Class H Pass-Through Rate** With respect to any Distribution Date, a per annum rate equal to the Weighted Average Net Mortgage Rate.

**Class G-RR Pass-Through Rate** With respect to any Distribution Date, a per annum rate equal to the Weighted Average Net Mortgage Rate for such Distribution Date.

**Class A-5 Pass-Through Rate** With respect to any Distribution Date, a per annum rate equal to a fixed rate of [_____]%.

**Class D Pass-Through Rate** With respect to any Distribution Date, a per annum rate equal to 3.0000%.

**Class H-RR Pass-Through Rate** With respect to any Distribution Date, a per annum rate equal to the Weighted Average Net Mortgage Rate for such Distribution Date.

**Class A-SB Pass-Through Rate** With respect to any Distribution Date, a per annum rate equal to 3.3660%.

**Class A-S Pass-Through Rate** With respect to any Distribution Date, a per annum rate equal to the lesser of (i) 3.7480% and (ii) the Weighted Average Net Mortgage Rate for such Distribution Date.