Finished the 2"x6" steel spacers between the axle and the frame. The install took a good four hours. Dulled 2 half inch Carbide drill bits at 12 bucks a piece. Used grade 8 nuts, bolts, washers and locks. Cranked them down to 120 foot lbs.
The adapters aren't ready yet but did a test fit of the wheels.
The first (that I know of) Jayco tent trailer with German alloy wheels. Bling on a ghetto camper.....