is it possible to fix a Chassis for envoy 2003 by cutting it and the re linking on 2003 GMC Envoy

I have an envoy 2003 and I noticed that the car had been cut into two before and re-linked
the performance is great but what about the safety
is it possible that the car will be cut into two in the future ?

Asked by for the 2003 GMC Envoy
Its good but it should be connected by a welded plate across the 2
Joined pieces
There is no link
i can see the two parts welded with each other .. that's all
do you have any idea how i can do it ?
and is that dangerous if it;'s not there