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

[Roa, Greg]

That makes sense, but is the final drive set partially by the rear diff?  If
so, I would think that you would be required to change the final drive ratio
for the front drive (have no idea how one would do this) in the tranny too
in order for this to work.  Otherwise, your front and rear wheels would be
using different final drive ratios.  Correct?

Greg Roa
Cincinnati, OH
86' 4kcsq
93' 90 CS
83' 944

-----Original Message-----
From: Marc Swanson [mailto:marcswanson at mediaone.net]
Sent: Monday, October 08, 2001 12:35 PM
To: Roa, Greg; 'Nate Stuart'; Swann, Benjamin R. (BSWANN)
Cc: quattro at audifans.com; sjensen at mindspring.com
Subject: Re: 5kq vs 4kq transmission ( was - Ur quattro gearbox woes)


> 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.


HTH

-Marc-
87 4ktq
88 90q