My shop just measured the end studs, calapsed length, extended length, and piston diameter. I'm going to guess that my shop installed a NAPA shock made by Monroe.
It would have been useless to contact the "Dutch Idiots" at the factory. They don't even know what they put on their campers for parts when building them.
Didn't surprise me that they said they, "never installed shocks on the Infinity".
I had the shocks replaced last year at this time. Since then, I've been to Florida and back. I've been through Maine and NH camping throughout this past Summer and into the Fall. The shocks and grommets are doing very well. I've also, recently changed all four tires from the Akuret "E" Rated to "G" rated 14 ply tires.