Question about installing sub frame connectors

[scherp69]

When you're installing sub frame connectors, how do you want the car to be sitting? I've been told by some people that you want the car sitting at its ride level. On Muscle Car TV, Lou put jackstands on the subframe help get rid of the sag. What is the best way to have your car sitting while installing them? Is it possible to install them on a rotisserie while the car is upside down? Thanks.

[Project69]

I would assume you want to get rid of sag in the unibody and sub-frame.

[hotrdblder]

in a camaro as long as the 1/4s and rockers are good it will not go anywhere when cutting the floor boards alittle, with the dse connectors you cut no structure out, just a 3x24 or so slot in the florr board, do them on a rotisseri if you want, if you feel better but a crossbrace in each door opening, but it does not need it
jake

[wendell]

Jake's right but I think the poster is talking about the loads the car should be under when the SFCs are welded home. To that, I would worry more about having the car square (look up the reference dimensions in you chassis manual) and all your sheet metal gaps right. If that stuff is right, don't worry about "sag". Sag is a relative term.

If you've yet to decide on SFCs, the design and instructions provided by "CarlC" are the best I've ever seen. You can probably search my posts as well to see some on my own take on them. Have fun.

[hotrdblder]

like wendell says before welding to subframe make sure car is squared and wheel base is checked and double checked, then weld sfc's to subframe, which you can install sfc's then wait till just before paint to square and weld to subframe.

[68Formula]

My car is complete too and I have been wondering the same thing. If it was a bare shell, it's pretty straight foward, but what if it's already a driver?

Do I put it on a drive up lift resting on it's tires? Or use a 4 post and then what points of the underbody should the car rest on?

Thinking out loud here, I guess since the body gaps are already good, I should probably weld it in as it sit on the tires. Is that the general concensus here?

(And yes I will have the squareness checked first).

[hotrdblder]

the only gaps that would change wouldbe hood gaps and fender to door gaps and that if the subframe is not sqaured and there is not enough room to move radiator support around. the door opening will not move when cutting notch for sfc. yes install sfc,weld it to rear frame rail, and floor pan, then set car on tires, square and check wheel base then weld sfc to subframe