Started tweeking - a little bit at a time. Seems to want to spring back when I release it. I'll do a little on each side - don't have to go far - maybe 1/4".

https://photos.smugmug.com/Cars/Fire..._114059-XL.jpg

CR

Cool!
Following

I spend weeks researching rear suspension options: monoleaf, multileaf, composite leaf, watts links, bushing types, etc.

I finally decide I'm gonna rebuild my 10-bolt BOP with an Eaton posi, install Global West Cat5 reverse-eye leafs with 2" drop, a Fays watts link, Koni adjustable shocks and figure out an adjustable swaybar (my current VSE bar is not).

I call GW - their spring supplier is gone, they have nothing left in stock for the 1st gen f-body and have no idea if or when they might get a new supplier.

Grrrrrr!

Have you considered back-halving the car? A-lot of work but...it’s a 67 Firebird!


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Waiting on frame rails. Got most of the spot welds cut. Welding in the frame rails will be as much back-halfing as I'll do. :lol:
CR

10-4. Can’t say I blame you. Could have shaved years off my project and I’d still have a back seat. I remember seeing re-pop frame rails for these cars. I think my 74 Nova and your Firebird have the same frame structure.


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Ooooo! Shiny parts delivered today! We'll have something to do this weekend!

https://photos.smugmug.com/Cars/Fire..._202526-XL.jpg

https://photos.smugmug.com/Cars/Fire..._165849-XL.jpg

Getting Giddy!
CR

As I plan to replace just the damaged center section of the frame rails, I wanted to test fit the watts link frame so I could plan my cut line. The last thing I want is for the cut/weld line to end up right at the bolt holes.

https://photos.smugmug.com/Cars/Fire..._094344-XL.jpg

So I set the frame in place and scribed the brackets into the 1/8" thick rust- proofing. :lol:

I want my cut line to be between the two legs of the bracket. The yellow lines are my cut lines. The red line is the edge of the bracket.

https://photos.smugmug.com/Cars/Fire..._114102-XL.jpg

I placed jackstands at the front and rear of the frame rails and shimmed until all the measuements were spot on. The porta-power did a great job - you can see the gap create in the relief cut.

https://photos.smugmug.com/Cars/Fire..._112641-XL.jpg

Then we cut the rails and bust the spotwelds.

https://photos.smugmug.com/Cars/Fire..._121542-XL.jpg

Now some cleaning and grinding before we bravely cut the new frame rails to fit. :confused59: I tried to make nice square cuts to make the job a bit easier. We'll see.

If you are wondering exactly what category of build this is - I think I'd call it a ProKill build. Somewhere between a ProTouring and RoadKill build. :lol:

CR

Why not go ahead and replace the whole rail from the cut back to the rear? That's what I would do.

Good luck either way.

Yeah after I stood back and looked it over, I thought the same thing. So off it came!

https://photos.smugmug.com/Cars/Fire..._204910-XL.jpg

https://photos.smugmug.com/Cars/Fire..._204927-XL.jpg

Still some clean up to do.

CR