Project Greyscale 1971 Trans Am

[bsharpe]

Originally Posted by syborg tt

When you install the brackets on the rear frame rails they were designed to be bolted in. A few guys have fully welded there brackets in and had the frame rails crack.

Here is what we did on 2nd chance.On a side not I don't plan to track this car just autocross and I believe the two cars that have had there frame rails crack were both on a Road Course.

I read about the cracked frames on Jay's thread. I am glad that I have not welded the frame brackets yet. I didn't plan on fully welding them but I am now considering strengthening the frame first. I looked into the replacement rails today. They are expensive but I do plan on going on a Road Course.

[syborg tt]

Originally Posted by bsharpe

I read about the cracked frames on Jay's thread. I am glad that I have not welded the frame brackets yet. I didn't plan on fully welding them but I am now considering strengthening the frame first. I looked into the replacement rails today. They are expensive but I do plan on going on a Road Course.

Fairly certain you can get a set of Rails from Art Morrison.

[bsharpe]

I have been working with Jay(JSM) since he originally posted his c5/c6 flange setup. I knew that I wanted to use this type of flange on my current build. I was honestly waiting for DSE to finalize their setup using Steilows flanges.
I am extremely happy that Jay offered his flanges first.
This setup is not only better and more versatile than all the other options but it is also cheaper than most. The flanges might seem expensive when compared to a set of Ford Big bearing flanges($80) but you don't need brackets like those available from Kore3($750 for parking brake).

I already had a Ford 9" housing so I ordered the flanges and jig ends from Jay. I also ordered Mittler Bros 60" alignment bar from Jegs($130) and the 2.890 inner alignment blocks($80) for the third member from JEGS.




Jay will loan the larger inner alignment blocks but the third member cases with larger bearings are harder to find and are more expensive. I bought a empty case for $40 on craigslist. I now own a Jig for any 9" housing.



I measured and cut my axle tubes to the correct lengths. Assembling the fixture and using the jigs is extremely simple. I than tacked the flanges on and test fit everything under the car to make sure everything was perfect.






Everything looked great so I put it back in the Jig and had the axle fully welded. Truck Tech on spike had a good episode on building a custom 9". You can watch them online http://www.powernationtv.com/episode...om-9-rear-gear


I am now waiting for the weather to warm up so I can paint and assemble evrything

[Sonar Chief]

Nice ... I was wondering how they might work out, looks like they are just what you need for the swap.

Thanks for sharing .... might be a rev. 2 for my 12 bolt!

[syborg tt]

Wow that is a great looking kit for the 9" almost makes me want to swap to a 9.