So I was in pricing out 4:56s and the guy at my shop told me that I should go 4:10s as I still drive a lot of highway.

Anybody shed some light on this? I'd like some jam off the line and up to speed but also need the truck to be driveable at highway speeds without too much mpg loss.

Thanks guys
Kyle

 

That would be Someone who has never had 4.56's telling you that.

 

You have 3.92s now? If so, 4.10s won't feel like much.

 

I meant to add that I currently have 3.55's. He said that with my wheel and tire combo 4.56's is overkill... I'm not sure there is such a thing when building a truck tho unless it's stick on chrome

 

dont mean to sound dumb but i just bought 35" trail grapplers but havent put them on yet, how do i know what gears are in my truck. its an 08 1500 hemi quadcab

 

Well there should be either a glovebox sticker or you could call the dealership with your vin and they could tell you. Those are likely the easiest ways

 

thanks man, cant wait to get my 6" lift and my new tires put on

 

What size tires are you running and do you plan onm going bigger? I would go from a 392 to a 410. Thats a waste of money IMO unless you can do it yourself.

I run 456s but Im also running 36" tires

[EDIT]I just seens the 355s so that is a good jump. If you are keeping stock 32-33" tires then I would stay with the 410s but if you are going bigger then I would certainly think ahead and get the 456s

 

Thanks Weed. Is there going to be a huge difference between the 4.10s and 4.56s? I didn't notice ANY difference when I went from 3.55s to 3.91' in my second gen

 

the difference between the 4.10's and the 4.56's is only gonna be like 200 rpm. With my 35's I am at 2k doing 100km/h. At 130km/h I spin 2.5k. It works great as long as I keep it below 130 on the highway above 2500rpm she like to guzzle. IMO 4.56's just incae you plan on going bigger later on.