Since the OD gear is .79 on a 5-Speed and .69 on the automatics, he/she
won't be "maxxed out" on the highway. The engine doesn't have any bearing
on the final drive ratio...just the power to get it moving.
The 3.90:1 (in overdrive) will wind up at 2.69:1 and with 235/70-15 tires
(28" Diameter) at 70mph...they should be right about 2250-2300rpm.
- Bernd
----- Original Message -----
From: "Tim J Koth" <Tim.J.Koth@aexp.com>
To: <dakota-truck@buffnet.net>
Sent: Thursday, October 19, 2000 3:12 PM
Subject: Re: DML: gear ratios & acceleration
> I may have missed an earlier email about this or something, but it he's
running
> 3.21's right now, is this a 4 cylinder? If so he's got completely
different
> gear ratios for his tranny than the 6's and 8's. If he goes slapping 3.92
gears
> in his rear he may end up maxed out at 61 mph on the highway and first
gear
> will be all but useless. Just something to think about..... Obviously a
> reputable gear vendor will be ale to help him there when he calls to buy
his
> gear set.
>
> ---- previous posts ---
>
> Date: Thu, 19 Oct 2000 10:02:40 US/Central
> From: bernd@texas.net
> Subject: Re: DML: gear ratios & acceleration
>
> Yes.
>
> My buddies (sold now) '98 Sport 5.2L with 3.55's and mine with 4.10's. I
took
> him out of the hole every single time with my V6. ;)
>
> If you really want to run some decent "All Around" gears, the 3.90:1 works
very
> well for street/strip and with minimal (if any) loss in mileage.
>
> - - Bernd
>
> > This may be a dumb question because the answer is probably
> > common sense, but - has anyone ever done a head-to-head
> > comparison of two dakotas, identical except for the two trucks
> > having different gear ratios? I am just curious as to how
> > much of a disadvantage I have with the 3.21 gears. I'd like
> > to know what kind of difference 3.55 gears or better would
> > do for my off-the-line potency.
> >
> > thanks,
> > Kevin D.
> >
>
>
>
>
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