Forge Hacks

Hi I am looking for hacked clients that can be installed in forge. I mean hacks for modpacks. I know a while back I found a hack for bigdig (mc 1.5.2 modpack) where you simply replaced a modpack.jar with another one. I am looking for a hacked client for forge 1.7.10 and wonder if anyone can develop one or give a link to a pre-existing hack for forge 1.7.10?

Thanks.

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exact same request