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Old 09-03-2013, 07:01 PM   #14
gvw5400
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Join Date: May 2013
Location: Colorado Rocky Mountains
Posts: 263
Re: Engine rpm @ hwy speed??

Just a thought, actual RPM may be a bit higher than the charts indicate. Unlike manual transmissions and later model automatics,[700r4, 4L60, 4L80 eta..] T350 autos have some slip/ stall through the convertor even at highway speeds. I am a manual transmission guy but maybe some of the auto trans experts on here can weigh in to give an opinion on how much this raises the RPM in question. all the best, Dirk
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