I'm only familiar, hands-on, with a 5sp diesel Vanagon transmission as
installed in my own 84 tintop "westie" with it's hybrid gas inline ABA
(2.0l) motor.  I will say I'd probably not own a Vanagon except for how
well I think the 5sp gearbox works for me.
I have the factory rear end ratio and I prefer my current tire size (195 r
14) over the stock size, I think they are about 8% larger in diameter than
stock tires... I've run both happily, but the 195s put my preferred
downshift at around 65mph, so 5th back to 4th is useful and lets me hold
speed when I come to a long grade without stressing my motor with high
rpm...3700<4000 in 4th..Appx.
  I'd think a TDI might get by with a 4sp, given the torque, but on the
other end, 1st gear is my granny gear, seldom-used in daily driving but
very effective when off the highway or on steep starts.  A turbo might be
happy with a very low first, given their needs for some rpm before they
have torque.
  I often drive past WBX vanagons on hills or headwinds, and I'm hearing
very low rpms, painfully low...Or they are in 3rd, and moving slowly...
  A big $ for the Weddell...But a big improvement, if they work as well as
a factory 5 SP...I.M.H.O.

On Dec 27, 2016 9:11 AM, "Jason" <uberhare@gmail.com> wrote:

This page shows the available ratios:
https://weddleindustries.com/products/new-products/new-vw-094-5-speed-kit

Looks like a viable option.  I've read it moves 1st down past the lockout
though.  I'd have to modify my shifter since that would drive me nuts.

Jason

On Mon, Dec 26, 2016 at 11:49 PM, dlwilhite <dlwilhite@comcast.net> wrote:

> I didn't know there was such a kit. Interesting.
>
> D. Wilhite
>
> > On Dec 26, 2016, at 8:49 PM, Jason <uberhare@GMAIL.COM> wrote:
> >
> > I am looking to build a 5 speed for a TDI conversion.   Does anyone have
> > experience with the Weddle 094 5 speed kit?  4.13 final with 0.70 5th
> would
> > be nice!  Since I have to regear a transmission anyways, this may be a
> good
> > route:
> >
> > https://weddleindustries.com/products/1000157/1005442
> >
> > Jason
> > Uberbus
>