I know this is an old thread, but I wanted to check with others about my specific situation. I have an Adventure Trailer Horizon (2005) that I bought used. It has 5 x 5.5 pattern on the hubs (CJ pattern I believe) and I was getting ready to replace the hubs with 5x5 pattern hubs so I could run the same wheels on my trailer as the Jeep. (Probably AEV Pintlers). Anyway, it dawned on me that the rim center bore would probably not clear the hub diameter, and I happened on this thread. The hubs are similar to a Dexter style, with the EZ lube spindles - no particularly low profile.
My question is this: If I am already going to have to add spacers anyway (to clear the hub spindle) then I might as well run an adapter/spacer rather than getting new hubs, right? I found this company that can make the adapter I need in the thickness I need.
http://adaptitusa.com/5x550to5x500wheeladapter.aspx
The trailer has 35" BFG ATs 315/70/17), however, and I am concerned that with the spacers and more offset in the Pintler wheels, that my tires will be sticking way out from the trailer fenders. I also concerned about the additional stress on the spindles. What other options do I have (if any) besides running different wheels with bigger center bores?
UPDATE: Here is a pic of the current hub and wheel on the trailer. With the EZ lube cap, the spindle housing sticks out 3" from the face of the hub. Yikes. However, the current wheels seem to have very little offset from the hub, so I think the spacer with JK wheels will work out pretty well in terms of back spacing.
Thanks!