Question about 1991 GMC K1500

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1984 gmc sierra shifting hard in all gears

I got a 1984 gmc sierra i just bought and it shifts hard in all gears. the tranny was just rebuilt 2000 miles ago and the fluid looks and smells fine. what do you think the problem is and should i have the tranny flushed?

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Your throttle valve on the transmisson is probley not adjusted to spec on this vehicle it runs from carb to right side of trans.


hope this helps

Posted on Feb 12, 2009

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