5kq vs 4kq transmission ( was - Ur quattro gearbox woes)

[Nate Stuart]

> > Interesting.   I didn't realize that there was any gear change in the
rear
> > diff (thought on the quattros that it would be 1:1).
> > So the question now becomes, if the 5kq has the same final drive, does
it
> > have the same gearing in the tranny, or does it have taller gearing as
> > well?
>
> I am sure that the 5kt tranny has taller gear ratios in the transmission.
> Quoting from Audiworld's historical guide:
>
> 85 - 87 4kq:
>
> 1st:   3.60:1
> 2nd:  2.13:1
> 3rd:   1.46:1
> 4th:   1.07:1
> 5th:    0.83:1
> Rev. :  3.50:1
> Final Drive:  4.11:1
>
>
> 85-87 5ktq
>
>
> 1st:  3.60:1
> 2nd:  2.13:1
> 3rd:   1.36:1
> 4th:   0.97:1
> 5th:   0.73:1
> Rev:  3.50:1
> Final Drive:  3.89:1
>
>
> So the conclusion is that the 5kt tranny has taller gears from 3rd up, and
> the final drive IS different.  But, you can still get taller gearing my
using
> the 5kt tranny with the 4kq rear diff.

The tranny in question is from a 5kq, not a 5ktq (made the same mistake
myself). In which case the gear ratios go like (again from audiworld.com
trust at your own discretion):
1st:    3.60:1
2nd:    2.13:1
3rd:    1.46:1
4th:    1.07:1
5th:    0.86:1
Rev:    3.50:1
Final:    3.89:1

So the only gearing difference is really in the final drive. Besides the
0.03 difference in 5th ;)

-Nate
'89 90tq
www.newtsplace.com