Stress cracks

[JSvoboda]

Working on a 91 RS Camaro and I found stress cracks on the roof. What's the best way to repair this and prevent it from coming back?

[Darren]

Stiffen the body and suspension up is the only way to prevent them but every thirdgen that I have seen has had these. Ask James or Sean how they prevent them from coming back those are two cars in person I have seen without them.

[WMCCjames]

I guess I was was lucky when I bought my car 18 years ago. It was low mileage and didn't have any cracks. I put in SFC's right away and its still crack free. T-top cars are not as prone to cracking in the roof as a hard top. The hard top cars have a massive natural stress riser right at the top where the B pillar meets the roof.

[kammi10]

subframe connectors and a 6 point roll bar here. i repainted the car and smoothed it all out and dont have any issues now. would expect i never will once the remaining part of the cage goes in next year

[Gregs_gsxr]

but to fix the problem, drill a small hole at the end of the crack, grind each side of the crack, to make like a valley, but a row of tacks in there, grind smooth and stiffen the car up with what the guys said above.