04-13-2024, 09:34 PM | #1 |
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Changing Tire - Spinning in Park
I was changing my front tires today.
The transmission was in Park with Emergency Brake activated. With only 1 front wheel in the air, I thought the transmission would lock the front wheel from moving. Why was I able to spin it? |
04-13-2024, 09:42 PM | #2 | |
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Quote:
When you spun one front wheel, the power went through the differential and spun the differential input shaft at half the rpm you were spinning the single front wheel (bc that's how diffs work) which had no resistance when though the other front wheel was stopped (because it's an open diff). The diff input shaft went to the transfer case, where the fluid clutch was disconnected because you were in park. So it was allowed to spin with minimal resistance. The parking brake is only on the back wheels.
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2019 X3 M40i | TU Pump | AA DP | VTT GC | xHP Stage 2 | Dorch ECA | MHD Odin FF | Carbon Black | Adaptive Suspension | M-Sport Rear Diff | 20" staggered
SOLD! 2015 X1 35i | Alpina Trans Tune | Dinan Stage 2 | Bilstein B6 |
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