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GMC Forum: Three stooges, minus two
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Old 06-17-2017, 10:30 PM
Bill325 Bill325 is offline
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Default Three stooges, minus two

I jacked up one rear wheel of my GMC Sierrra , and ran the engine up to about 25 mph on the speedometer. Soon billows of smoke were coming from the rear of the truck, and I thought the jacked up tire was rubbing on something.
It wasn't. The smoke was coming from the other rear tire , resting on the dirt, and fortunately I had a large wood block under one front wheel. Thusly, I learned that my truck apparently has a positraction rear axle , a fact I never noticed over the last 5 years. ( Name withheld to protect the incompetent.)
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