I think 285's in theory should fit the rear. If you have to roll the fenders a bit that's not all that bad to do. The front would have me pretty worried. I just have a strong feeling the fronts won't accommodate a 9.5" wheel in any way, shape, or form. Are the C5s not staggered?

My main concern is the hub bore - if the C5 hub bore is smaller, I'd recommend looking around. The E39 BMW has the same size hub bore, and plenty of wheels in fitment for it. Bolt pattern is 5x120, +20mm offset for the E39. I don't know those specs for the Jag, but it might be worth looking into E39 fitment wheels. Since they need to be hubcentric, if your machinist isn't 100% right you'll get a bad wobble, especially on your front wheels. I ran 18x8.5" 255/40s on the front, 18x9.5" 275/35s on the rear of my E39, so you'll get plenty of staggered set ups available for it if you want to try that.

 

It probably depends on the ET I´m Fitting 285/30/20 in the rear on mine in a month or 2. Will tell you how it goes i will probably need to roll the arches a bit

 

Original ET for the Jag is 33 mm.

Somewhere in this forum I have read about a guy that has BMW wheels fitted, front 9" ET 25 mm and rear 10" ET 20 mm. Original BMW E39 wheels has ET 20 mm. Unfortunately I don't know the ET for Corvette C5. (C6 is 56 mm) You need to check the ET on those rims...! If they are like the C6 wheels it means they would be 56-20-6 = 30 mm closer to the arches compared to those 10" wheels above. (If I am thinking straight here) Compared to, let's say Jaguar Milan rear 9x18, it is 56-33+6 = 29 mm closer to the arches. (Jag Milan are only 8,5 wide in front)

Pretty common to fit E39 wheels on Jags, but there is actually a slight difference in hub bore. At least if you check out the links below, indicating the Jag is 73,9 mm. Some say even 73,8 mm. BMW E39 is 74,1 mm. Probably not a problem since many people do it.
https://www.jaguarforums.com/m_13815/tm.htm
http://www.coventrywheels.com/wheel_styles/index.php
http://www.lkperformancestyling.co.u...ke/JAGUAR.html

Another difference is the bolt pattern diameter, but not disturbing if you ask me. BMW is 120,0 mm, and Jag is 120,6 mm. I once had a Corvette-89 with BMW wheels fitted - and the Corvette is also 120,6 mm, as I am sure you know.

Personally, I have gotten BMW rims (8,5x19) with ET 35 mm and hub bore 72,5 mm. (Picture posted on my profile) I have had them opened up to 73,9 mm (done by an expert). Haven't used them so far, but I tried to mount them on the car and it was fine. Almost original ET, so I am happy. (There are also some BMW rims with ET 34 mm avaialable)

Btw, on that Corvette I switched the original front 9,5 " wheels for 7,5" to make it ride better. Not always good with wide wheels...

 

Congrats. Looks good! What kind of work did it take?

 

Please, what was the work required to fit the corvette wheels?

-Andy

 

Wow! That's a fat rear tire. Looks good. I wonder how much more can be put up front without damage?

 

i see this is a old thread but any input on rubbing issues with these wheels?
and what was needed to make it work?
thanks

 

I don't know about fitting Corvette wheels on a XJR, but I did run 285-35-19's on 19 x 10 HRE wheels on a lowered 99 XJR. I did have to have a body shop roll the fender lips on the outside to avoid rubbing. Other than that no issues.

 

Still trying to decide if i want to order 18x12 for the rear or just stick with ordering 18x11s. Yes there will be fender work involved to fit these.

 

with the roll did they fit under the wheel wells or stick out beyond... I am assuming under but I am having a hard time seeing them fit?... mine are only 9.5 wide too.