3rd Gen Dakota Gears 4.10 or 4.56?
#1
3rd Gen Dakota Gears 4.10 or 4.56?
I have a 2006 3.7L V6 Dakota Quad Cab. I put 265/70 BFG KO A/T tires on it and now the engine seems sluggish. It was recommended to me that I should get new gears for it to put a little more get-up-and-go back in my truck. However, I know very little about gears and don't know what size to go with or even if I should be looking to gears to fix my problem. Please help!!
#2
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If you're 4wd, you will need to change both front and rear gears, that gets pricey. But as far at 4.10 or 4.56, it really depends in your preference. If you are looking for fuel economy, either gear ratio will help your overall city mileage, and hinder your freeway mileage. If you do more city than anything, you will see an overall gain, better gain with 4.56s. If you do mostly freeway, you will lode mpg. More so with the 4.56.
Now if none of that matters, then 4.56 will give you the highest gain in torque, and the biggest change in driving characteristics. You might even be able to peel out with 4.56s on that lethargic v6.
Its costly though, parts and labor for 1 diff can run you 500-1000. Add a front diff into that and its 1000-1700 smackroos gone in a blink.
Now if none of that matters, then 4.56 will give you the highest gain in torque, and the biggest change in driving characteristics. You might even be able to peel out with 4.56s on that lethargic v6.
Its costly though, parts and labor for 1 diff can run you 500-1000. Add a front diff into that and its 1000-1700 smackroos gone in a blink.
#3
thanks
Yea, I figured the price would bite me in the butt in the end. But I just can't handle the sluggishness of the large tires on top of the less powerful v6. I do a lot of freeway traveling so I'm not sure the 4.56's would be the best. But would I still see a significant change with the 4.10's? If I am going to be shelling out a couple grand I want to be sure it is worth the money.
#4
$200-$300 or more per gear set (good gears are not cheap; bad, noisy gears are cheap), $100-$200 for master install kits for both differentials, $400-$600 in labor per axle. Even if you get all the best deals in the world, you are still looking at $1500 as a bare minimum, probably closer to the $2000 mark.
Kind of funny when you think about it... the higher gear ratio option when buying a new truck is usually less than a few hundred dollars anymore. Soooooo much more to do it after the fact.
Kind of funny when you think about it... the higher gear ratio option when buying a new truck is usually less than a few hundred dollars anymore. Soooooo much more to do it after the fact.
#5
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If you have 3.92s stock, then 4.10 won't be worth it, but if you have the 3.55s then you will certainly notice a difference. Whether its worth it or not is really up to you, but with big tires you may find yourself at around the same mpg freeway and only slightly less with the 4.56s. It will certainly have you maintaining gears longer in hills without downshifting, and maybe help turn those wheels good enough to lessen the mpg hit. So is yours an auto or manual, and 4x4 I assume?
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#9
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The purchase of motor mounts probably, wireing harness, pcm for sure.. Most everything else remains the same. I think the fuel pump is the same, radiator.. Perhaps the drive belt accessories are different. Oh and the transmission is the smaller 42somethingsomething if I remember right, whereas the 4.7 has the 545rfe. Lookin at 4000 or more to do it right, minimum. Then you'll want gears after that haha.
#10
The purchase of motor mounts probably, wireing harness, pcm for sure.. Most everything else remains the same. I think the fuel pump is the same, radiator.. Perhaps the drive belt accessories are different. Oh and the transmission is the smaller 42somethingsomething if I remember right, whereas the 4.7 has the 545rfe. Lookin at 4000 or more to do it right, minimum. Then you'll want gears after that haha.