mfg of vehicles sometimes start MY way early. Two examples, the 2015 GM 2500 series was initially mfg started in very early 2014, maybe even late 2013. in late 2014 they did some updates and called it a 2015.5 if I go to gm to get parts.
My 2004 duramax is similar.in very early 2014 the did updates and it's a 2004.5 when I go to get parts.
And my 97 Mercedes E420 was actually built in late 2005 but called a 97 MY.
So it may be the same with chassis for the MH. the mfg may have started 2022 mfg while the conversion was listed as a 2021.
