I bought sills for my s14 from eBay a while ago because I knew they needed replacing. I have to be super careful when using a jack to get underneath it...I have heard way too many cracking sounds when I lift it up. I'm worried that the sills I bought are not going to be robust enough to support the car when I jack the car up. they are so thin...I was expecting something a lot more substantial. The metal seems so thin to support a car.
I have put big dents in my sills by jacking it up and when I put the new ones in I need to know that I'm doing it properly. Should I be thinking about rot beyond the sills? Can someone look at the images and tell me whether these are going to work please.
Thanks in advance.
https://imgur.com/a/kGJJJz6