I think this is the kit you mentioned:

https://total-bus-bekloppt.de/produkt/vw-bus-t3-schiebetuer-lagersatz-auch-ab-8-84-92-mach-deine-schiebetuer-leise/

Wow, that seems spricey to me!

On Thu, Aug 13, 2020 at 10:24 AM Raimund Feussner <ray@v6bus.de> wrote:

> In Germany, there is a vendor that sells a roller bearing kit for newer
> (85+) doors, the rollers´ surface is made completely out of
> teflon/nylon/rubber(?)
> I have those in my glovebox, not yet installed. But from what I heard
> (rumors and personal experience on sliders equipped with them), they´re
> really quiet.
>
> Picture:
> http://www.v6bus.de/rollers.jpg
>
> Regards
> Raimund
>
> Am 13.08.2020 um 18:20 schrieb David McNeely:
> > First, thanks Alistair for clarifying the confusion that has been bandied
> > about.
> >
> > Now, the important part:  Many later model campers DO have hard closing
> > sliding doors, with attendant noise.  I now know some of the fixes for
> > that, regarding new and remodeled parts, plus proper lubrication.  Some
> > even use a special tape on the door roller track to help silence that.  I
> > believe you are one of those.  BUT, being a fabricator, do you think a
> > handle could be fitted to the rear of the door interior?  If so, how
> would
> > you suggest one do so?
> >
> > Thanks so much for all the good ideas you have put on here over the
> years,
> > even thanks for those I have not used (most of them, lacking technical
> > skills like yours).
> >
> > mcneely
> >
> > On Thu, Aug 13, 2020 at 8:22 AM Alistair Bell <albell@shaw.ca> wrote:
> >
> >> Raimund,
> >>
> >> My 82 diesel Westy, North American model, had the rear handle on the
> >> sliding door. Mounted, as mentioned on a square boss that was welded to
> the
> >> door structure. When I got the van the handle was oriented vertically,
> ie
> >> hanging down. Took me a few years to realize it could be re installed on
> >> the boss so it lay horizontally. Made grabbing it a tad easier. And
> yes, it
> >> was the spring loaded handle same as at the front off the door.
> >>
> >> My 86 Syncro , again North American model. Does not have the rear handle
> >> nor the mounting boss.
> >>
> >> I think it’s safe to say the rear handle was dropped when the door
> design
> >> was changed in 85.
> >>
> >> Post 85 doors in good working order close so much easier than the older
> >> doors that the additional pull using a rear handle ain’t needed when you
> >> are trying to do that soft slow close :-)
> >>
> >> Alistair
> >>
> >>> On Aug 12, 2020, at 1:18 PM, Raimund Feussner <ray@v6bus.de> wrote:
> >>>
> >>> Part number front/rear handle is probably identical.
> >>>
> >>> Makes sense.
> >>> I have a 85+ sliding door, and am pretty sure it does not have that
> >>> square mounting stud in the rear.
> >>> The square stud still has to be the same as the square one on the front
> >>> release mechanism.
> >>>
> >>> Never had the chance to check out a pre-85 door though...which probably
> >>> has the rear stud welded to it post-factory, because I know there is no
> >>> "bump" underneath the usual doortrim.
> >>>
> >>> Raimund
> >>>
> >>>> Am 12.08.2020 um 21:53 schrieb vw_van_fan_Mark:
> >>>> inside sliding door handle VW # 253 843 642
> >>>> sold used Ebay etc, new replicas? from GoWesty
> >>>>
> >>>>
> >>
> https://www.gowesty.com/product/handles-trim/2286/inside-sliding-door-handle-
> >>>>
> >>>> I think many 80-84 Campers had the second one at the back.
> >>>>
> >>>> Mark
> >>>>
> >>>>
> >>>> Raimund Feussner wrote:
> >>>>> Hmmm, if it´s unique, it should have its own part number.
> >>>>> If it´s used anywhere else, we could do a parts search with its
> number.
> >>>>>
> >>>>> The later style front slider door handle is this:
> >>>>> https://i.ebayimg.com/images/g/UYEAAOSwbNZc4WzX/s-l640.jpg
> >>>>> Looks very similar, from Jim´s photo I looked at...
> >>>>>
> >>>>> Ready to learn something new. Can someone check the discussed
> handle´s
> >>>>> P/N ?
> >>>>>
> >>>>> Could be from an LT as well.
> >>>>>
> >>>>> Regards
> >>>>> Raimund
> >>>>>
> >>>>>
>