Can I fit 12j 20" alloys on the rear of my 2001 jag xk8? It needs adapters as pcd is 5x108

 

Not without flaring the fenders or somehting along those lines. 10.5 is about as wide as will reasonably fit.

 

I think they might fit... it depends on the offset of course... and the spacer thickness and how that affects the offset... and how low the back end sits.

I have 20's on mine that are around 10.5-11" wide and I could easily go out wider...

I took some pics to show how mine looks...

 

Chris, what wheels are those?

 

They are Avant Garde M310's... I had to have the hub bore widened about 2mm or so but other than that they fit perfect. I bought them used off of Craigslist in perfect shape with tires - they were on a BMW 5-series and the guys lease was up so he was selling them.

 

I don't thik it is possible without fender widening. Arden Sportlines are 9.5/11J and they are tight fit.