Where can I download older cuda driver, such as cuda_5.5.11_linux_64.run

I need to run a software under this driver condition, but cuda official website only offer 7 and 6.
I could not find it on the website, anyone has a backup of cuda_5.5.11?

https://developer.nvidia.com/cuda-toolkit-archive

cuda 5.5.11 was cuda 5.5RC (beta, pre-release)

The release candidates are not archived on the toolkit archive, but you should be able to do whatever you need to do with the CUDA 5.5 that is available there.

Thanks very much, txbob. The toolkit is great.