Tranny swapability question

[Huw Powell]

> Along these same lines, any BTDT on the feasibility of adding the taller
> fifth gear to my 84 CGT Turbo tranny? 4000rpm at 80mph is getting to be a
> little much. My 86 4KCSQ does damn near 100mph at 4000 rpm. I would like to
> keep 1st thru 4th gears where they are (hauls ass off the line) and use
> fifth mainly for freeway cruising/top end. I have a spare 84 tranny I may be
> rebuilding in the near future w/a Quaife diff and hopefully a more practical
> fifth gear!

Well, the earlier tranny (80-83) is higher geared across the board, some
in 1-2-3 and even more in 4-5.  closer to 3k @ 80 mph as I recall.

I'm supposed to be trading one of mine with Matt in Seattle who also has
an 84 cgt and wants higher gears, as soon as I either find a suitable
picnic chest for shipping of build a crate.  I still will have 1 or 2 of
the higher geared fwd trannies even after that.  And I'm sure there must
be a few out there in junkyards, too.

I think you will have a tougher time just trying to lift the 5th ratio -
one, it probably shares gears with another gear (like 4th? - anyone
really know this stuff?), two you'll make a weird "gap" between the
gears that might not drive "nicely."  But hey, give it a try and let us
know how it works!

--
Huw Powell

http://www.humanspeakers.com/audi/

http://www.humanthoughts.org/