I believe the frame is slightly different. The holes are not pre-drilled, but are you looking at just adding the small foot or the large scissor stabilizer?
Adding should not void the warranty, but you may want to check with your dealer, or call Jayco directly.
22 Year Air Force Civil Engineer, Retired.. Generator Tech at Grand Forks AFB, Part time RV Tech and Parts Manager at a Jayco Exclusive RV Dealership