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

[Nate Stuart]

I have both transmissions here in my garage, physically they are the same,
however it is my understanding that one must swap the rear diff to match the
final drive of the given transmission. The 5ktq tranny will not work with
the 4kq rear diff and visa versa...

Later,
-Nate
'89 90tq
www.newtsplace.com

----- Original Message -----
From: "Swann, Benjamin R. (BSWANN)" <BSWANN at arinc.com>
To: <Greg.Roa at Cinergy.COM>
Cc: <quattro at audifans.com>; <marcswanson at mediaone.net>;
<sjensen at mindspring.com>
Sent: Monday, October 08, 2001 10:38 AM
Subject: Re: 5kq vs 4kq transmission ( was - Ur quattro gearbox woes)


> I'd be interested in knowing what the answer is.
>
> Question:  are the 5kq transmissions interchangeable with the 4kq in order
> to get a higher gear ratio/overdrive?
>
> Ben
>
> p.s. if it makes any difference, the application would use a 200Q
> flywheel,pp and clutch assembly with modified 2.3l engine..the
> ongoing(never-ending?)Project GTQ:
> http://www.homestead.com/Ben_Swann/files/GTQswap.txt
> http://www.homestead.com/Ben_Swann/myaudi.html
>
> p.p.s. New Audi added to the corral this weekend: Charcoal Black 5KCSTQ
> wagon (purchased from Steve Jensen - thanks for the hospitality Steve)!
>
> >>>
> [Not that I am going to pull out my transmission anytime soon (did a
clutch
> job this spring...  arrgh), but something you said caught my eye.
>
> Being as I drive about 35k miles a year, mostly highway, I have been
wishing
> that my 4kq had a bit taller of a 5th gear.  In my future plans for the
car,
> but not the really near future, will be a turbo swap.
>
> Now, the question.  You said that he could use a tranny from a 4kq, of a
> 5ktq if he wants higher gearing.  Are these boxes interchangeable?  If I
> were to do a turbo swap in the future, I would probably want a taller
geared
> box, so that I could actually use 1st gear a bit more, and get a bit
better
> highway mileage.
>
> Thanks!
> Greg Roa
> Cincinnati, OH
> 86' 4kcsq
> 93' 90 CS
> 83' 944
>
>
> >> Are these boxes DIYable?
> >
> >probably.  I decided not to go that route because the 016 is SOOOOO
common.
>
> >Have him pull one from a 4000q ( early 80q model on your side of the pond
I
>
> >think) or a 5000 tq if he wants taller gearing.
> >
> >
> >HTH
> >
> >-Marc-
> >87 4ktq
> >88 90q]
> >>>
>