The 3.55 is actually closer to the 3.21 than the 3.92. With the 31"
tires, you need the 3.92. Just my opinion.
Tate
>----------
>From: Steve[SMTP:Slow@primenet.com]
>Sent: Saturday, December 13, 1997 2:23 PM
>To: dakota-truck@buffnet.net
>Subject: Re: DML: Cost Axle Ratio Swap
>
>On Sat, 13 Dec 1997 20:30:42 -0600, you wrote:
>
>>New Dak 4x4 with 31" wheels has come with a 3.55 axle ratio. Want to
>>swap out for 3.92 ratio which will "return" shift points to same speeds
>>as the 3.55 with standard 28" tires. Tooling along at 65 in 3rd is
>>worthless especially when there is no way I can get those big 31x10.5's
>>to spin off the line. Low end strength is needed.
>
> Is this a V-6 or a V-8? I assume it is also a automatic? There
>is not much of a change from 3.55 to 3.92, is it really that
>important? I would suggest driving a identical truck to yours, with
>the 3.92's to see if it would be worth the trouble.
> I have the 3.92/five speed and I'll admit, it will smoke the
>tires without even trying.
>
>
>>
>>How much should a swap like this cost?
>
> It is very expensive. Most of the cost is due to setting up
>the new gear sets. (Read Labor)
>
>>
>>Off road shop quoted me $1,400, 700 an axle. This seems way high. I
>>had thought a few hundred, but the I might be out of date.
>
> That's kinda high, but it will cost you more than a few
>hundred. The gear sets alone will run a few hundred.
>
>
> I might also suggest if you do decide to do it, now would be
>the time to add traction control devices in the axles. I have the
>Trak-Loc in the rear, and I love it. I would like to add a limited
>slip in the front, but the front axle is a new aluminum casing and I
>haven't heard of anything for it yet. I was apprehensive about the new
>aluminum axle, but now seeing that it is a non-load bearing design, it
>is no biggie.
>
>
>
> Steve
>
>
>97' Dakota, CC, 4X4, 5 Speed, all the goodies 'cept anti-lock brakes,
>Mud Flaps, spare-tire lock, Step-Shields, EVSII Alarm, Gibson Single
>3" Cat-Back,Tow Hooks....
>
>
>
>
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