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Thread: 6.4 Hemi 2500
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Old 08-03-2018, 04:03 PM   #37 (permalink)
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Join Date: Nov 2010
Member # 174963
Location: Taylor, TX
Posts: 463
it's the 8 speed. 3.21 rear gear. The 8 speed has a 4.71 first gear, so even with the 3.21 rear end it still has a lower first gear final drive than my 08 with 3.0 first gear and a 3.92 rear end, and about equal for second gear. It takes off pretty quick.

I cruise 80mph at ~1700rpm, in my old truck it was ~2100 rpm.
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