Chevy's typically had the chassis info on the steering column, under the steering wheel.
If you plan on keeping the rv for a while, and plan on doing most work yourself, you can get a repair manual, that will cover virtually every aspect of the chassis. Probably way more info than you need at this point, but, it is a great reference manual that will give you specs on just about everything chassis related.
It does not cover the coach parts.
These manuals are not cheap, but, imo, well worth the money.
http://www.faxonautoliterature.com/I have no affiliation with them, and make no money from their sales. I am just a satisfied customer.
If you want to do something, you will find a way.
If you don't, you will find an excuse.
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Good judgement comes from experience.
A lot of experience, comes from bad judgement.