i want to regear also because my cars AWD so its not that quick the begin with!

 

I wasn't trying to beat you up it's just that you offered all of your opinion with no first hand knowledge to back it up. I did much research and read from a few on here that had regeared to 4.56s (in Dakotas) before I had mine done.

What I offer is from what I have read on here AND what I have experienced first hand in my own truck.

Cheers!

 

I was just providing lower gearing isnt always better, i didnt say exactly what gear ratio to use.

 

True, but you did say that 4.56s would have no top end and get horrible mpg. Neither of those is correct.

 

And that's why I'm going to 4.10's with a 33" tire. This should make around a 3.78 ratio or so, and with that I should get the best ratio with low end and high end fuel mileage. But then again I am talking about 2 different vehicles.

 

Wizard:

Having AWD does not affect the performance of your D as negatively as you think.

This is because all of its 4800 pounds and extra 4x4 hardware are there whether or not it is part time or full time 4x4.

The 4.7 engine is a great motor. My previous 01 D had one, and it was trouble free. Now that I have an 04 Hemi, I can see that the 230hp in my 01 was not the powerhouse that the 330 hp Hemi is.

If you do regear, I would recommend going with the 4.10 gears. Going from 3.55 to 4.10 is quite a change. Going all the way to 4.56 will help around town since you will only have to breath on the gas pedal to get moving. Your loss will be on the hwy where the higher rpms will eat the gas like no other.

If you can do it yourself (most folks don't have the know how or tools), you can probably do it for about $1k. Double that if you pay to have it done. In any case, you will want it done right and right the first time.

Don

 

yea that makes sense ill probably go for the 4.10's but 1k???? i can get gears and pinions for $400, you think it really costs $600 to get them installed?

 

The shop that did mine does it for about $850 per axle, parts and labor. Lucky for me I have 2wd.

 

I would have to believe that the 5.9 dislikes revs more so than the 4.7 does. I lost 1 mpg on the hwy with the 5.9. ONLY ONE MPG!!!

4.56 gears will not eat the gas like you think it will.

Don't fear the gear.

 

Yes the 4.10's would be best, (it was labeled the best gearing for many years!)


You might be able to get the ring gear and pinion for $400 but you forget about the "Other" parts when you get into the differentials. First you NEVER just replace the ring and pinion by it's self, you ALWAYS do a full rebuild!

Ring and pinion
Master bearing kit including shims
LS (if installed) clutch packs
Axle seals and Bearings
Yoke
Trust Washers for spiders
Spiders if needed
Hypoid lubrication, Friction Modifier (if LS), Grease (for seals)
Shop Supplies

Then you need the special tools!