[V8] Goodyear Tires

[dsaad@icehouse.net]

I don't see how that could have lived very long at all.
What kind of center diff did it have?
If it was a torsen, it would have been trying to lock all the time wouldn't it?
If you had a electronic lockup, and it NEVER locked, it might work for a while
but I again would have guessed that the center diff eat itself up quickly.
The stresses on CV joints and the whole drivetrain would be tremendous.

With the center diff locked, the drivetrain would have to explode in short
order. There has to be somewhere for all that stress to go.
My experiences with more traditional 4WD trucks and Jeeps says that the
drivetrain binds up quick if there is any difference at all from front to back.

Dave


Quoting "Buchholz, Steven" <Steven.Buchholz at kla-tencor.com>:

> .. do you have any data that demonstrates what sort of increased stress
> is created on a drivetrain that has tires of different diameter?  I'm
> sorry, but it does bother me to see this sort of statement without any
> data to substantiate it.
>
> Here is my data point ... I owned a 1987 5000 TQ which had the proper
> rear diff but the transmission from a non-turbo ... i.e. a final drive
> ratio of 4.11:1 in front and 3.89:1 in back.  I don't know how long it
> was in that configuration, but I do not expect that even this magnitude
> of a transgression did anything to the overall longevity of the
> drivetrain ...
>
> The only things that I can think of to bear in mind ... the ABS system
> does tend to expect all four wheels rotating at the same speed ... I'd
> imagine that on the V8 the transmission controller might want to lock
> the center diff on an automatic when enough variation is seen ... that
> and the Torsen diff will tend to shift power away from the larger
> diameter wheel.
>
> Steve B
> San Jose, CA (USA)
> >
> > My understanding is that tires need to have the same circumference in
> 4
> > wheel drive applications.  Changing circumference changes the final
> drive
> > gear ratio. Tires should be *very* close to avoid strain on the
> drivetrain.
>
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