In a message dated 2/8/2016 10:42:02 P.M. Eastern Standard Time,  
zolo@FOXINTERNET.NET writes:

Is that  true that all ‘85 campers has to have  ‘tachometer’?
Zoltan

i have seen the "non-GL" (aka "westy weekender") base model campers with  
and without tachs. Some were badged as wolfsburg editions and some  werent. 
there appears to be no rhyme or reason to it.  But the GL  full camper models 
always had the tachometer.