I have subframe connectors on my 67 and we just reinstalled the body back on the subframe. The connectors make contact on both sides where the floor dips down about half way to the rear. I dont want to push the floor up because it was never replaced and should be in the stock location. Do you think they will bother anything if they do contact the floor pan at all?

My Nova does the same thing. I thought they might be the cause of a rattle it had so I ran a bolt through the body and the connector. It stiffened the car up enough so that you could feel it.

I was worried about contact so I put some rubber bushings made from black garden hose between the connectors and floor. They have been in there for a couple of years now without any problems. Kevin

My 69 z28 does the same thing but it hasn't been a problem.

I would recommend in addition to the subframe connectors solid aluminum bushings to mount the body; to eliminate the body flexing into the connectors. If you think the aluminum would be to harsh (ride quality and noise transmission) I would go with polyurethane.

Larger Dave

Ditto on the solid body bushings with frame connectors.

For those that are having clearance issues you could always notch the connector if you don't want to disurb the sheetmetal of the body.

I do have the Energy poly bushings so I think I will let sleeping dogs lie and just leave it the way it is.

The Detroit Speed and Engineering, Inc. subframe connectors are ready to be installed. These connectors are welded in and follow the shape of the floor pan.

My CE's also touched the rear floor, but it is fine,no noise at all.

I thought *most* SFC's went through the rear floor pan? I might be thinking about the home-made variety. I will be doing this project in the not so distant future. I think I will be welding through the floor pans, and welding the SFC's directly to the pans themselves as well as the front & rear attaching points.

I have always wondered, if you weld the connectors to the subframe, and then have to remove the sub later, do you have to cut the connectors and then re-weld them back in?

Go69,
There are different styles of weld in connectors. When I did my last set I did as you described, cut and welded them through the floor. I think that gives the ultimate strength and offers the most ground clearance. The bolt is and some weld ins are designed around the rear part of the floor pan.

Onve you weld in connectors you basically have a full non-removable frame. The only reason to ever remove the sub frame would be in the case of an accident, at that point you just have to start cutting and grinding. This is another reason I like solid bushings, they will never wear out or break down, once you weld in the connectors it's not going to be easy to replace the bushings down the road.