EdwardoA

what gears would work better on my truck I am debating wether 3.73s or 4.10s?

GreyFX4Eco

Provide more details about your truck...engine, tire size, do you tow anything?

EdwardoA

its a 2004 lariat 5.4 2wd, as of right now I have stock 18s but I am going to put original 20s with 275 60 tires and I don't tow anything

jamie930

My truck came from the factory with 3.73 and 275/65 18 tires running 275/70 18 now

275/60 20 is the same size as 275/70 18

EdwardoA

My truck came with 3.55 and non limited slip

PerryB

If you want a perceptible performance increase go with the 4.10, the difference between 3.55 and 3.73 is negligible and a waste of money in my opinion.I would also consider a limited slip differential unit.

cscott900

Agreed, difference between 3.55 and 3.73 is too small to waste the money, go with 4.10's. Limited slip will be nice to if you live in a region with snow and ice.

markwerline

4.10s.

FStorm150

Can I ask why you even need to change gears from what I assume are the 3.55's that you currently have? You're not looking to tow and those tires aren't that big. I had 4.10's put in when I had my lift and 35's put on, and to this day I really don't think it was necessary. The difference really isn't noticeable. Perhaps 4.56's but again, unnecessary for 35's IMO.

EdwardoA

well I actually bought the limited slip unit I was only debating on gears