Quote:
Originally Posted by maxcbrdriver
You're rear wheels have a 1.9% greater circumference. Xdrive requires front and rear axle speeds to be the same. Xdrive does not have a center differential, just a tx case. As such, it can transfer torque, but differences in speed will only create internal wear to the tx case clutch plates. It's generally quoted around here that a 1% allowance is ok, but I'm not sure. You can emply xdelete to essentially keep the tx case open.
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I'm using xdelete now but more of a band-aid until I get the tires set correctly. I believe a 275/30/19 rear and 245/35/19 front will get them within tolerance levels.