Subframe Connectors

I'm not really trying to argue about it LOL, but more so to point out how easy it is and maybe encourage someone to save a bucket load of money on what amounts to be a straight piece of metal...
For 5 to $800 someone could buy the material the welder the grinders and everything elseand for that matter pay for a class to learn how to weld LOL.. if watching a few YouTube's wouldn't get you there..
I just mention it as an alternative and give pictures encouragement and will answer any questions...
Look at mine in the pictures. I had just but the welder and wasn't very good with it yet. I was barely off the ground with the jack stands and welding upside down and it was a mess. They've function perfectly and there's no cracks on the welds.. and all these years not one person has laid on the ground and looked under the car and said oh God look at those welds!!!..
Remember those bolt-on ones aren't just a piece of cake... You definitely have to Jack the car way up in the air so you can work under there. You got the drill multiple holes that line up through both sides of the thin walled Factory box tubing.. those holes better be drawn very close to the circumference of the bolts going through them or else there's going to be movement. The exact thing you're trying to stop... I would suspect after years of twisting those bullet holes are going to start wallering out because the factory metal is not that thick... I.e. pretty much welding them is the only way to make them solid and that's basically what we're going for here.. even if they're bolted up firm feeling from one end to the other as the body twist there's a lot being expected of bolts going through sheet metal...
no I can see if you're building a show car and expecting to drop mirrors on the ground for people to see underneath...
And what it boils down to is it's not my money spend away LOL...
A cheap alternative would be to get the two pieces of 4 ft by 1 and 1/2 inch by 2 and 1/2 inch metal stock, cut the end off like I showed in that picture. That would require you to buy a $14 Harbor Freight cutter grinder. And then cut the 3 cuts on each side of the frame to open it up in the back. Slide the end of the frame connector in there and push the front end up against the front with your jack and shoot a self-tapping screw through the bottom of it into the frame. So they're pretty much set. Then drive it up to a muffler shop and have them welded up..