fstrecon8653
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- May 30, 2012
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hello, I own a 2003 tahoe 1500 4x4 with 4.8l, an auto tranny 120K miles. I recently had the front diff rebuilt new gears and bearings, but after towing a cargo trailer from Wa to Wi a gear whine developed while underload in 1 thru overdrive and during deceleration. it's louder at higher rpms when the tranny first downshifts then tapers off unill it downshifts again. in park there is no whine, in gear with the brake on there is no whine. The tranny started to slip a bit while towing over the mountain passes, dosen't slip if not towing. It shifts normal in standard but if in tow mode it shifts hard and clunks into gear. I know the tranny needs to be checked out and possable new clutch pack/bands, but what would cause the whine? The rear diff or tranny? any thoughts would be great.
thanks
thanks
