hey guys i have a 5.7 stepside i have all the bolt ons and a rebuilt 4l60e with performave rebuilt kit shift kit and servos and i juss installed a tru trac diff with richmond 4.10s and idk wats goin on but i got slower! i ran another truck that i had lost to in the past and he was barly beating me by a fender and now he pulled on me by 2 cars! even from a dig! he had the same stuff so idk wats goin on please help thanks!

 

i would say it probably depends on what speed yall are racing from. i didnt notice a difference on the street going from 3.42s to 4.10s but on the track i dropped ~3 tenths.

 

I agree. I had 3.42 then 4.10 then 3.23. The 3.42 definitely pulled very well on the highway but the 4.10s did much better from a stop.

BTW, to me, it was never a night and day difference between any of the gears. People on here exaggerate a lot...

 

Its definitely something else other than the gears. 4:10s was one of my best upgrades and ive never seen them slow anyone down. Better look for a kit on ya buddies truck. lol

 

Usually a change from one size to the next isnt nearly as noticeable as skipping a size. I went from 3.73s to 4.56 and it was a huge difference.

 

Edited: Just saw "Even from a dig"

Did you tune for the gears after installing them? If not your shift points will be way off. Edit: What year is this truck?

 

he said he did, what gears were in there before,when i went to 410s it didnt really feel like much of a difference

 

3.42s to 4.11s here, and I didn't notice a huge difference. I only swapped them because 4.11s are a much better performance gear once you add a stall into the mix.

 

I felt a big difference in 3rd

 

thats what i hear-i noticed a little difference from 3:42 to 4:10s but cant wait for the stall to go in to get their full potential