Those wheels actually have a 66.5mm center bore, so no machining required. The center caps will not fit at all. You will need a set of the small ball seat lug bolts and nuts (which are completely different than the large ball seat lugs used for the Vanagon steel wheels). Other than that, they are a direct bolt on. 

Thanks,
Christopher 
www.t3technique.com

-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of Gabriel Hourtouat
Sent: Tuesday, June 26, 2018 10:08 AM
To: vanagon@GERRY.VANAGON.COM
Subject: Rim Capacity Rating -- used rims from an Audi A5 -- 1430 lbs

Does anyone know/have experience with these rims for use on an 86 Westy?
(2.1L wbx, manual).  I am guessing the rim rating is 1430 lbs.  Is that too
light for our vans?

I will be glad to receive other relevant comments, too.

These rims:
https://www.kijiji.ca/v-tires-rims/city-of-toronto/audi-q5-a4-a5-vw-tiguan-tires-rims-225-50-r17-5x112-bolt/1365580050

Stampings on the rim:
7.5Jx17H2 ET28
LWF
JWL (in japan font)
RONAL 2712
2 inside a circle
A inside a circle
Audi four rings, 8T0 071 497
AlSi7Mg

TRAGLAST: 650KG seems to translate into a payload of 650kg, or 1430 lbs,
per this website:

https://www.original-felgen.com/8t0071497a8z8.html