Guest Anonymous Posted August 18, 2003 Share Posted August 18, 2003 i have a 72 240z wiht a l28 in it, the tranny is a 5spd, from a 280, when i get on the freeway, and shift up to 5th gear, right away it starts to hum, the more i step on it the more it does it. i use to have a 240sx and a 300zx and they did the same thing. what could this be? Quote Link to comment Share on other sites More sharing options...
Guest Blue02wrx Posted August 20, 2003 Share Posted August 20, 2003 don't forget that the wheel bearings and possibly the rear diff could be "roaring" Quote Link to comment Share on other sites More sharing options...
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