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Message: [QUOTE="Morgan@Midwest Diesel & Auto, post: 1035739, member: 8143"] The 4r has it's known limits. The 6r has massively strong internals. Hell they've been produced since 2010 and you still don't see sh*t for upgrades.... There's a reason, they are strong. We will start seeing more high hp 6r's soon. I personally will not take the 6r out of my reg cab. If it comes down to that l will just quit trying to make any more power with it. It will be running soon with big compounds to match the fuel and spray. We will see how the trans holds. Only reason I could see doing a swap is to a 47 like Craig's for competition drag truck or a manual trans for a straight competition pull truck. [/QUOTE]

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