Hello. I have a 1996 Monaco Dynasty and am looking for advice as to what size of jack stands do I purchase for my RV with a GVWR of 128,000 lbs? I would like to do some maintenance under the RV and ...
Assuming your rig is 28k and not 128k, I would get a pair of 12 ton Jack Stands. Nothing smaller.
I believe jack stands are rated as a pair, not as individual units. 12 tons will give you a capacity of 24 thousand pounds. That will be plenty for the front or rear end of your Dynasty. Two pair will give you 48k capacity.
Use your hydraulic jacks to lift the Dynasty and install the Jack Stands.