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		The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1967 - 1972 Chevrolet & GMC Pickups Message Board
12 bolt help

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01-15-2015, 09:03 AM	#1
jackyl9999 Registered User Join Date: Feb 2003 Location: Paragould, Ar Posts: 571	Re: 12 bolt help I had a slight howl in my rearend the entire time I have had my truck. I had a posi installed this week and the mechanic checked and replaced a bad pinion bearing. The howl is gone. So that may be your issue. __________________ 1970 Gmc Grande Sierra Swb 2wd LSX (LQ4/4L80e) 1990 K1500 Daily

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