Originally Posted by ctpres
HI OP Here again - more question and more answers
"I don't know of any 'drop base plate' hook ups to reduce height difference between the two vehicles."
It is not the base plate it is the tow bar itself.
From Demco website Commander tow bar description
"Rise or Drop Male Receiver
Standard 1½ inch rise/drop receiver tube: No other tow bar manufacturer can stake this claim!"
I looked at the Commander, yes, the tow bar has a 1 1/2" offset built into the receiver end of the tow bar. I thought what was being referenced was a base plate that had a rise or drop built into it to compensate for height difference at the toad end of the set up. I'd be uncomfortable with the drop built into my $400 tow bar, I'd rather use a $40 drop hitch receiver.
I first used a drop hitch receiver to zero out the height difference between my MH and toad. It was only a 2" drop. I was plowing grooves in driveway's and campsites, so I removed it and have 2" difference between MH and toad. I can live with it and haven't bottomed out since I removed it.
If you look at Blue Ox baseplates, they have transverse bracing built into the baseplate. Their tow bars don't have a cross brace. Roadmaster base plates are often just bolt on stubs to the frame ends, thus the transverse bracing is built into the tow bar. Yes, some of the Roadmaster base plates have tie ins between the two mounting plates, but many do not, at least that was my theory in the difference in the designs in the two brands. I found a gently used Blue Ox tow bar for $170 and so I went with a Blue Ox base plate to match. I've not regretted my choice.