how to keep original belts when mounting a bucket seat?

[bozothenutter]

As above.
Dutch MOT rules need the original belts to be present and in working order (and they seem to be practical for day to day use)
But the clasp is mounted to the seat and I assume that does the tightening of the belts in case of an accident.
How have other ppl dealt with this? (if they have)

 

[James28]

The seatbelt pretensioner/buckle are all in one unit.

So you just bolt that on to the bucket seat subframe. I've use my original belts with my buckets no problem.

(Ignore the labels I nicked this from my airbag wiring guide in the guides section, but shows the hole it bolts onto the seat through)

 

[bozothenutter]

wow thanks!

A pic says more than a thousand words!
I might bolt the whole lot to the floor of the car to be on the safe side...would that be ok?