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Old 08-18-2013, 12:29 PM
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Shifting

Hard Shift
My newly acquired 2000 F350 DRW has the 4r100 trany
with 176,000 miles.

When going into 4th it shifts hard and abruptly. If I anticipate
the shift and let off the throttle a bit it smooths it out a bit

1st to 2nd is smooth, 2nd to 3rd smooth but a bit more abrupt.

Any thing to be concerned about??

Fluid is not discolored at all. Truck bone stock and never chipped.

I'm running about 61 to 62 mph at 2000 rpms or so... is this a 4.10
rear end? No tag on it that I can see.

Thanks
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Old 08-18-2013, 12:51 PM
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ya, those rpms and speed coincide with 4.10's.

With acquiring truck, i'd do a complete tranny flush, to rule ur out...
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Old 08-18-2013, 01:20 PM
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Thanks........

I'll set up a trany flush, fluid looks good but a cheap
thing to do regardless.
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Old 08-18-2013, 02:35 PM
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Are you sure a tranny flush is a good idea with those miles and you don't know if a flush has ever been done on that truck

Sent from AutoGuide.com Free App
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Old 08-18-2013, 02:56 PM
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I know near to nothing about automatic trannys because I have never owned one. My uncle has a 94 f-250 but with the E40D tranny and he had a problem with it shifting abruptly and somewhat violently into every gear. He was told to try disconnecting the battery for a certain amount of time to reset the computer, so he did and it worked. The tranny shifts normal and smooth now. Because yours shifts hard into only one gear, I'm not sure if this would work but since it doesn't cost you anything it might be worth a try.
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Old 08-18-2013, 06:20 PM
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Ahhh the trany flush controversy...

The battery disconnect is worth a shot, thanks
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