Jayco Wheels?

Hi Steve,
Got no idea about your first question, Having said that, If they know what you want and what it fits, they should fit.
Under "slinging" your axle will help with lift to accommodate the bigger wheels.
With fitting the spare, make sure you have a plate on the inside to distribute the weight across the whole area. This should help in supporting the extra weight.
Other may know more on this. The structural side of these Camper.
Hope this helps.

Hi Phantom. Are your existing drums 5 stud on a 10 inch drum? Should be no problem to convert to a 6 stud drum - hope you are paying no more than $90 each. I did this change to an older model Swan last year. As far as the mounting goes, we came across a Penguin at Dalhousie Springs last year that had lost the spare and bracket due to a failure of the welds on the badly corrugated tracks. Again is yours an on or off road model as this will mean a supposedly stronger bracket on the off roader... Warrie

I would guess that if it is mounted to the rear wall its not stong enough. Every possibioity it will pull straight off. Fitting a large square plate on the inside may actually spread the load better. Or why not look at either moving it to the A frame or on a rear bar modified to suit or does it fit in the front boot ....