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No, wheels are 17" and 336mm brakes from an XC90, but there are 316mm brakes from the XC90 that will fit under 16" wheels.Great job! Questio what size alloys are you running will those disks and calipers work with standard XC70 R16 alloys?
I'll share what I know.
There are 3 different sized brakes, 316mm, 328mm, and 336mm. I'm unsure which models came with 328mm, but from my understanding XC90 2.5T came with 316mm as they'll fit under 16s, and XC90 T6 and V8 came with 336mm, rear brakes are the same size for all models. All calipers require the correct carrier. Most likely which ever caliper you purchase will come with the correct carrier.
The 336mm calipers are larger than the 316mm and also require a different sized carrier. Here's a side by side of a 316mm caliper and a 336mm caliper.
Numbers are:
316mm Calipers: 30639520 and 30636355, or casting number 969 and 970
336mm Calipers: 30657307 and 30657303, or casting number 960 and 959
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