Speedometer for '87 4kq quattro

[Tony Hoffman]

On Wed, Jul 25, 2012 at 7:26 AM, Chris Semple <chris at force5auto.com> wrote:

>
>
> All the 4000q were JT code engines, 2.2L. And all were 4.11 final drives,
> but the '84 thru mid '85 gearboxes and rear diffs had some slight
> mechanical
> differences(flange sizes, case castings, and 1-3 ratio differences (as I
> recall). Nothing that should effect speedo drive.
>

The only difference in gear ratios is actually the fifth gear. In the 84's,
it's a .83 to one, in the 85-87's it's a .79 to one. The official Audi
literature shows otherwise, but I've hand them apart, counted teeth, done
the math. As have others. Go figure.

I have two '84's here at the shop, one a quattro with 1740 on the speedo,
and a FWD LE with 1580 on the speedo. I have an '86 as well, but it's at
home so I'll have to look tonight. I've been driving the 100 because the AC
works ;-)

Tony