Transmission Vibration In Overdrive - Dodge Durango Forum and Dodge Dakota Forums
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post #1 of Old 10-21-2011, 12:26 AM Thread Starter
neromo4
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Transmission Vibration In Overdrive

I have a vibration that starts exactaly when the overdrive kicks in. Its a very low sounding vibration like someone has the bass turned up. When I turn off overdrive, it stops, and when I turn it back on, the vibration comes back. The trans has about 7 grand on it, and the vibration just recently started. Trans fluid is good, and at the proper level. Driveshaft is balanced, and front diff bearing is tight. Also, the trans mount is good. Can someone help me out or suggest some things please.

2002 v6 3.9 dakota sxt 42re 7k

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post #2 of Old 10-21-2011, 12:42 AM
PDR1878
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Hmmm I assume u-joints are fresh? You check for play? Though honestly if only going on in OD without change in speed and only RPMs, then I'd say something inside the tranny.

My Bronco does the same in OD between 71-76 mph. A bad shudder, but gives off a low vibration. My Bronco been doing that for the last 2 or so years...
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post #3 of Old 10-21-2011, 05:09 AM Thread Starter
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trying to twist the drive shaft, no play. trying to push up and side to side on the drive shaft on each end and no play. Im really hopping i find something outside the tranny because i just rebuilt it at the start of spring.

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post #4 of Old 10-23-2011, 07:10 PM
91sonomast
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Sounds like an internal deal, did you replace the bands and clutches, assuming you did. Do these use bands for OD? If so maybe tighten the band?

98 ECSB, Ford 19# 4 hole injectors, M1 2bbl, 1999BLKDAKRT 52mm TB, Taurus E-fan with FAL controller, new freeze plugs and rebuilt trans by me, PPH headers and full exhaust with Hooker Aerochamber, Depo one piece black headlights, 17x9 KMC Addicts, black paint with custom clearcoat flake, dents, and scratches, R/T springs.....runs better than she looks.
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post #5 of Old 10-23-2011, 11:52 PM Thread Starter
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valves, seals, plungers, bands, springs, everything is new. I'll try to take off the pan tomorrow and see if there is anything in there, and double check the bands.

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