i am having alot of trouble making my mind up on gears,any feed back an what gears to put in rear end,its a 05 quad cab 4x4 with 295/70/17 i do alot of highway driving so i dont want it to low geared

 

Honestly, I don't see any reason to go with any less than 4.56s with a tire that is basically 33 1/2" x 11 1/2", especially with a truck that essentially has two over-drive gears.
You'll be right in the power band that the Hemi really likes to be in (2000-2250 rpm) when cruising on the highway and many (including me) actually report better fuel economy in that range than under it!

I get a good bit better mileage around town with the 4.56s and really have to be traveling above 75 mph to see any less than when I had stock 3.92s...

 

4.56, anything less and you wont notice a difference, at least not enough to justify the cost. and remember that you have to do the front end too or you wont be able to engage the 4wd

 

i recon...i just finished up my 500 mile break in on my motive 4.56 and i love em....moesperformance.com has the best price too....

 

will 456's be to low i do alot of interstate driving how many rpm's are you turning doing around 70 mph

 

depends on tire size, but im runnin 4.56s and i report around 2100 at 70 mph and if your truck kicks out of od going up hills 4.56s will fix that. imho that is the best part for me.

 

As Hammer stated right around 2100-2200rpms.
I have altered my up/down shift points with my Superchips tuner and I have been getting much better mpg's.
I have 3:92's with 33" rubber and I would not do 4:10's at all. I wouldn't think twice to go with 4:56's. Only reason i have been getting better mileage is because my truck has been up in the power band where it should have been from the factory.

If you plan to go any bigger of a tire, 4:56 no doubt. If your really worried, then go 4:10, but only if you have 3:55's because 3:92 to 4:10 is a waste of $$$ IMO.
I don't think 3:92 is near enough gear for these trucks especially since 4th gear is pretty much O/D and the O/D gear is a really tall gear.

I've never heard of anyone complain about getting 4:56's but i have heard complaints of guys wishing they went with 4:56's after having 4:10's installed.

Convinced yet...???..lol

 

I am turning right at 2700 rpms with the 4.56 gears at 70, thats with 35in tires. I lost about 2 mpg on the highway but i can now pull my 6500lb boat at 70 to 75 without any hesitation.

 

How in the hell are you up at 2700 rpm at 70 with 35s?

I run 35s and at 70 I'm taching right at 2150!!!

 

Thats what it turns....I have the 3speed plus overdrive(soft overdrive at that), dont the hemi's come with 4 speed plus overdrive?