Frame flexing?

[Gus68]

Hey guys!!!! Been a long time since I'e posted (crazy year!). Anyway I went racin this summer and ran pretty good for me! But there is always room for improvement right!!! Anyway I crawled under the back of my car (68 chevelle) just to check things out. I noticed that the brackets on the frame where the front bushings of the lower controlarms mount, looled like they were hitting the underside of the floor. The floor is about 1/2 in. above the frame mounts. I could see a shiny imprint of the mounts on the bottom of the floor???!!! Could the mounts on the frame be pushing up? or could the body be flexing. Is this a bad thing???? My car just has the originall rubber body mounts and no roll bar. I am thinking of putting different rear end gears in this winter, and taking the whole axle out. While that is out maybe do some welding and reinforcing to the control arm mounts. Has anyone done this before??? any tips on where to brace and what you did???? Thanks guys!!!

[Bruce69Camaro]

I'm not a chevelle person and the only thing I know about them is how to spell chevelle, but what about either adding solid or polyurethane body bushings to try and control the flexing?

Would that help?

Bruce

[Yellowchevelle]

I would make or find some one who sells a kit to brace the frame mount before something breaks. An anti roll bar would be an excelent investment also. I found hr parts & stuff make a frame brace kit for g bodys and i think they make one for a bodys as well. does your car have the brace that runs from the upper arm mount to the lower arm mount?

[Gus68]

Thanks for the responses!!!! Yes I have the braces that go from the lower control arm mount to the upper control arm mount. I was thinking of adding solid or poly body mounts but I have had the car painted a few years ago and I am afraid that if I start messing with the mounts that the doors and fenders and bodylines won't line up! Is this true??? Thanks again!!!

[Yellowchevelle]

Here is a good article on changing the body bushings, and yes mine did move around when I changed them. http://www.chevelles.com/techref/body_bushings.pdf

Hope this helps
Matt

[Gus68]

OK, so here is a few of my stupid ideas, let me know what you think. What if I add the solid or poly body mounts and measure the space between the frame and the body and trim the new bushings to the same thickness so nothing changes?? Or, what if I make some brackets out of some thick metal and weld them to the frame and the body? (kinda cheesy) Or, is all of this screwin around worth it?? Will I notice any real gain???