These trannys are different in several ways. They are not bolt-in
interchangeable. Different nose mounts and the shift linkage is way
different.

Gearing is likely different too but more info is needed to determine
this. All VW Vanagon trannys have a 2 or 3 letter code on the bottom
side along with some numbers. These letters tell the model, original
gearing, and bell housing style while the numbers tell when it was made.

It is possible to use a 091 tranny in a 091/1 Vanagon application but
the linkage difference is a serious problem. Specially made parts are
needed.

Mark

Laurence Smith wrote:
>
> Can anyone tell me the difference between a 091 and 091/1 manual
> transmission?
> Can they be interchanged ie. 091 for an 091/1.
>
> Thanks.
>
> Laurence Smith
> Hamilton, ON
> 90 Westy (fanumbos)