Specifications

The Motorhome Chassis also has different frame rails. Be careful to NOT use
adjustment/maintenance information from a Forward Control Chassis manual for your Class A
motorhome. Some things are common, some things are not.
It is unfortunate that even GM's documentation varies in what it names these chassis. The
“P30” term is simply too generic to help when specifics are needed.
If the 5
th
thru 7
th
positions in your VIN number are “P37”, then you have the motorhome
version of the chassis. Actually, it is the '7' that tells us we have the motorhome version of the
chassis. (See Appendix C for the VIN breakdown.)
But, not to get too far ahead of the process we will describe on the following pages.
Stay with it and I think you will come out happy in the end.
http://users.sisna.com/cebula/P-Chassis-AlignmentProcess.pdf 3 Version 0.7 –Sep 14, 2005