I need to document my build - I have a westy [lhd] with a triangulated steel framework in the wardrobe, this has 2 holes one bottom for the interia reel and one at head height [sat down]
under the bed, I have long framework made up that fixes to the original points but then incorporates other seat belt mounting points to allow the stalks and the lap centre belt.
I have used existing connections and then the bases of the side frames have a 6mm 150x150 plate with another captive 7/16 UNF to fix this part down.
It's quite complicated to explain so pics will be required I think?
so the belts come over the shoulder at a nice height on both ends of the 3/4 rnr, because of the frames. with a lapbelt should the kids bring one of their friends.
The thing is it isn't TUV tested or crash tested [thankfully!], but the frames I have made are all in 5-6mm, fully welded and the body work connections are either stock - or have over the top spreader plates [again spot welded for additional security]
The only issue is when we use the bed we have to retrieve the stalks and the belts get tangled sometimes at the edges.
My children are so special and precious to me so all the frames were built with their well being in mind! Rather than a it'll do approach.
Legally you don't have to run them before a certain year - my 68 definitely didn't require them.
It was a real pain to do but worth it in my eyes - especially as the westy furniture only has 2 visible 15mm holes!