I can't hear the noise to make a guess as to the cause, but what you described about spinning wheels is normal and correct. You likely have a locking rear differential that tries to make both rear wheels rotate at the same speed, but except for a few odd four-wheel-drive trucks from the 1960s, you'll never find a constantly-locking differential in front. That would make handling extremely miserable.
The whole idea of using a differential is it allows the two wheels on that axle to rotate at different speeds for going around corners. When disc brakes are used, particularly on the front, the friction is going to vary from side to side. Only the wheel with the least friction will spin. To prove this to yourself, stop the spinning wheel and you'll find the one on the other side starts to spin. Once both are tugging on the road, they'll pull equally hard.
Be careful when you try to stop the spinning tire. I've used long 2x4s and have had them catch and shoot out. If you use a board, have it standing up high so if the tire tries to catch it, the board will get shoved into the ground. If you use your foot, hold it against the sidewall in a manner it won't get broken if the tire grabs it. The safer alternative is to shift to "neutral", then solidly block the tire that was spinning, then shift back into gear. You'll find the other wheel is spinning now.
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Thursday, December 14th, 2017 AT 4:34 PM
