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Old 01-24-2016, 10:18 AM   #2
obijuan
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Join Date: Jun 2012
Location: cibolo tx
Posts: 1,033
Re: differential gearing

Just a tcase swap will have no effect on the rpm.
But to be sure, take to diff cover off the rear and read the numbers on the ring gear. They will tell the ratio. Then you can determine where your rpms should be when. Then determine if you have torque converter issues or something else.
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