If your setup is the same as mine, then yes, they will fit. I just went out and measured. (You owe me. It was friggen cold, icy, and I've already started on the wine for the night...
) From the bottom of the battery box to the bottom of the hydro pump bracket is 17" on the the door side of the rig. (The ODS has no height restriction at all.) Those batteries will be just under 16" so no problem. By the by, the cheapest place I found to order them is Stored Energy Products. Those monsters aren't cheap. Link: GPL-L16T
Plan on extended charging times to go along with the extended run times they offer. Great batteries!!
The only thing I'd be careful of is the stock plastic battery boxes. These things are HEAVY. I'd have some metal ones made up to avoid loosing them on the highway.