Quote:
Originally Posted by David.X5
If you have spun yours, you need at least 3/4 longer, as the transfer case female splines are damaged and you need to engage the undamaged part way in there. Changing the output piece on the transfer case or a used transfer case would help
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Your longer splines won't do much good without having enough mating surface on the TC coupling. In fact, you'll probably wind up with less than the OEM length actually engaged into properly fitting spline material.
2002 X5 3.0 294,438 miles (Front driveshaft and TC replaced at 136,000 miles)
2014 428i 14,700 miles
2004 325i sold at 123,600 miles
2001 325i sold at 66,000 miles