Ok bought a fleece tap shifter,everything went easy on install but I am curious. I own a 04.5 lly but has a 01 OS tcm tune in my truck which works alot better and shifts better than my factory tcm tune. But when I am cruising in 5th gear and press "-" on the shifter I get te OD lockout like said should be 4th gear. Well it stays in 5th still. Then I tap it down again and it goes from 5th right to 3rd gear. For some reason it's not recognizing the 4th gear(odlo) shift. I believe I can command it to stay in 4th while up shifting but it won't downshift from 5-4 i have to tap the - again and it goes to 3 then to 2 then to 1 like it should. Is this because of the 01 os tcm tune on a 04.5 lly?
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