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Have a 3 speed 400 trans, want a 4 speed 400? Help?

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01-24-2011, 01:11 AM	#1
1LOW4X4 Account Suspended Join Date: Jul 2010 Location: Southeast Texas Posts: 189	Have a 3 speed 400 trans, want a 4 speed 400? Help? Guys, I have an 85 silverado 3/4 ton, 350/400/4.10. Automatic trans. This thing runs 3000 Rpms at 65 mph. Unacceptable. Is there a 4 speed version of the 400? I need one bad! Thanks fellas Pic of the truck Last edited by 1LOW4X4; 01-24-2011 at 01:13 AM.

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