Drilling Extra Holes in Jimny Chassis for recovery points

[obansam]

Hi,

I'm currently fitting some rear recovery points to my 2012 Jimny. The factory ones look to be a bit light weight (and they don't fit a 16mm shackle pin anyway).

I'm setting it up so some 50 x 8mm flat bar can be bolted to the existing holes already in the recovery point. I will brace this back down to the vertical section and also bolt. The 50x8 will extend through the bumper and suit a 3.2t shackle.

Two plates will act as spacers to connect back into the main chassis rail, (which is channel section). There is an existing 12mm hole which I am going to use, I will put a 6mm flat bar inside the chassis to act like a large washer. All bolts will be 8.8s

I'd like to drill an extra hole in the chassis, just to help spread the load). Does anyone know if there any reason/regulations that will prevent me from doing this?

Any feedback would be great

Cheers
Andrew

[Swamped]

I don't know how the body work fits around the chassis but if I had a chassis rail like that I'd be drilling through the chassis horizontally with crush tubes and plating off one or both sides.

Provided you don't have any points of leverage and tie into the chassis directly going just off the bottom is acceptable too. Can sandwich the chassis with a piece of flat inside the rail too.

[Swamped]

Can search ccvc recovery and theres a pdf with some ideas. 0002 is the one with pics etc.

[obansam]

I don't know how the body work fits around the chassis but if I had a chassis rail like that I'd be drilling through the chassis horizontally with crush tubes and plating off one or both sides.

Provided you don't have any points of leverage and tie into the chassis directly going just off the bottom is acceptable too. Can sandwich the chassis with a piece of flat inside the rail too.

yeah had wanted to avoid connecting via the original recovery point, due to the fact it makes it a lot more fiddly to fabricate, but the indicator lights are perfectly in line with the chassis (damn!)
So this is the next best thing I could come with. Yep, will be using a 6mm plate (the same length as the external plate) inside rail to spread the load.