Usually the coach manufacturer will place the chassis data tag in the drivers area once the coach is built. If you will let us know what year, make and model of coach you have we can be of more help.
Mike, RVIA & RVSA Certified Master RV Technician
Amy, Dr. Assistant - Roxie & Mei Ling, four legs each
2000 Gulf Stream Scenic Cruiser 450 hp & 1330# torque
06 Saturn Vue, 06 Chevy Z71 4x4 & 2014 Corvette Z51 M7