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      03-22-2012, 08:01 PM   #133
GregW / Oregon
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Drives: 2015 M4 Coupe, 2012 ML350
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Location: Lake Oswego, OR

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Quote:
Originally Posted by TVMA Doc View Post
Would there be much of an issue with getting a new front comp pack wheel and using that as a spare on the back if it is even needed?

I see that the rolling diameter of the front is 25.8, the rear is 26.3 and most of these spares are coming in at 26. Would that put much strain on the diff?
IMO, it would not. Differentials are made for extensive cornering, which is essentially what you are doing with two different diameters. The advantage of the space saver spare on compact wheel is it takes up less space in the trunk and my weigh a few pounds less.
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Greg Lake Oswego, Oregon, USA
2015 M4 Coupe - Silverstone/Sakhir/CF
2012 ML350
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