Hi Jeff,

I look forward to other’s replying. 

My bench may not have been a original Westfalia but it has the sliding rails.  I actually have two benches a brown and a grey. 

In order to fit I took off the arm rest that would have gone against the stove side of the van.  This let the seat move in a bit and I could then line up a bolt or two in the track.

I suspect there were special bolts that were never passed on to me.  The bolts that hold on the rail covers seem a bit short and don’t match up for me.  Still I was able to get a couple to go in and keep the seat from sliding left to right. Forward and back is secured by the rails. 
With the arm rest off the slider just fit with enough room to wiggle in a securing bolt. 

Look forward to learning more from your post and the replies.

Eric Caron 
85 GL currently with engine and transmission out and front end coming together.

> On Aug 22, 2020, at 1:11 PM, Jeff Palmer <w.jeff.palmer@ICLOUD.COM> wrote:
> 
> Taking two extra kids to the cottage. How does the two person bench the slides into the Westfalia tracks get secured? Or does it?
> 
> Thanks
> Jeff
> 85 Westfalia
> 
> Sent from my iPhone