You do not want to be drilling into the closed box section.

There are specific points to drill through where the genuine reinforcement plates with the weld nuts fit nicely.

 

Oh well there goes that idea. I have got the front part of the seat rail thru the proper points at the front only there is 1 set of brackets that fall over the chassis box section so I wanted to know if i could drill thru them. As you say I shouldnt - does this provide a weak point then? Looks like I will have to remove bracket and relocate it.

thanks for the reply

 

the problem is trying to bolt up on a hollow box. you can just crush it. there are ways around it.

but i would try and tie in with one of the underfloor rieforcing bits rather than the box section.

 

Hi,

Don't give up just yet old fella, I fixed x2 VW bases in the rear for my children, with bucket seats and 3-point racing harnesses which they love and have passed MOT Testing twice now. I used the genuine spreader plates & managed to line up 3 points within the chassis which I drilled right through (but as stated they are specific areas). One of the holes is within the main box section but if you use extra long bolts they pass right through and out the other side for the spreader plat to fit.
The 3rd one (inner and front direction) clamps only to the wriggly tin - a bit pants but the other 3 are absolutely rock solid & safe.

If you want me to take so photos, give me a shout....I'll post em up for you.

T:

 

Hi,

One of the holes is within the main box section but if you use extra long bolts they pass right through and out the other side for the spreader plat to fit.
The 3rd one (inner and front direction) clamps only to the wriggly tin - a bit pants but the other 3 are absolutely rock solid & safe.

If you want me to take so photos, give me a shout....I'll post em up for you.

T:

Thanks for the reply. Any chance of these pics? I have a few ideas now and would like to see this one

Thanks