Im@ 100 when i hit 4th and im not sure about my rpm

 

yeah think you're confused on something. i could pull my 4.10 gears up past 140mph before ever needing to possibly touch 4th gear. i think i took my 4.10 up to 150mph once with it locked in 3rd..also 4th gear at WOT is asking for problems from what i understand. do you have a custom tune? also depending on your power level you may slow down locking the converter at WOT.

 

I have a custom tune and u might be right because i can feel it pull all the way till i hit my 4th and when it hits 4th i feel like it don't pull no more

 

Yeah I drive 22 miles a day one way, 20 of it is interstate @ 80 mph. If I still buzzed around Overland Park and only drove interstate once in awhile I think I would still really like the 4.56's.

 

Im pretty certain locking 4th gear at WOT is a NO NO.

 

i think what you think is 4th gear is actually your converter locking. a converter locking at wot in 3rd gear can feel like a shift. your tuner can fix that for you in about 2 seconds. just let him know that you dont want the converter to lock at WOT.