1 of 2 Lower Control Arm pivot shaft fixing bolt broken

[usedvolvoboy]

I'm currently replacing most of the front end suspension components on my '90 MM 2wd.
While removing the 2 fixing nuts for the rearward plate of the LCA (Driver's side), one of the bolts that appear to be pressed into the frame rail sheared off.
Is this flat-backed bolt indeed pressed in or is it tacked on there? It's tough to tell.

Where can I get one of these bolts besides going to the dealership?

I'm guessing at this point that I will need to grind the back off of the bolt. I noticed that the bushing presses against this so I guess I can't just use any old nut/bolt.

Pic is attached. Any advice appreciated.

Thanks,

Jay

[usedvolvoboy]

I left out a few words in my last post, hopefully the picture was clear enough, but since no one's answered I thought I'd try and clarify....since I was typing on my Surface 2, there was some weirdness with IE and this site and not all that I typed made it into the post.

So...I was removing the 2 nuts that hold on the rearward-facing plate for the LCA pivot shaft. The front-facing nut for the LCA pivot shaft it that big nut (18mm I think).

I'm sure someone on here as broken one of those. I'm just looking for the least tedious way to fix this.

Thanks again.

[pennyman1]

That will have to be either drilled out or ground off from the back side. Take a regular bolt of the same size, grind down the head, and weld it on in the same place as the original