I never use the button & I have a trailer pushing my truck 75% of the time. I've always heard if the trans is not hunting for a gear (going into OD & out) leave it alone.
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2000 F-250 SCLB 2wd 7.3 auto PHP stock-65t-80dd-120race-high idle-no start 4"tb exh, wicked wheel, 3 guages, AIS, coolant filt,
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