SUBFRAME CONNECTOR PROBLEM

I've read that most if not all weld-in subrame connectors require floor pan mods. This is why a lot of people get the bolt-on ones and then weld them on. I don't know why the bolt-on ones clear the floor pans, but apparently they do. You might consider returning them if you haven't welded them in yet.

I would tack the front, then apply a floor jack the rear and crank till it goes into place. It sounds like you are fighting a body that has been 'tweaked' at some point in its life.

are you using a lift? drive-on?

I think Dodgestang and PJx5x nailed it

Just for grins to double check the subframes put them next to each other. They should be perfect mirror images of each other.
Mine fit incredibly well.

Most of these cars are bent to some degree and most will run into similar problems.

I had the same problem. The sub frames touvh my floors, and when i would get one side inplace it would cause the other side to come loose, like a see saw. I tried pushing in the flores as much as i could though it didnt really help. I was replaceing th floors any how. The old floors apparently sagged much more then I thought. There fore i cut them out,they went almost right in. I had to put a dencet sized tack weld on the front then jack the back part with the X brace in place. You prob will have to hit the rear part into place with a rubbermallet and let the SF settle. Because at first when i jacked up the SF the whole rear of the car lifted up. After that i tacked the back. The welded them into place. thought there where slight gaps approxz 1/8 in gaps on the front where the SF cup the Frame rails. that can be filled with a bead. You should be fine There is alot of surface area on those SF to weld once there sit right.

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