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Old 01-24-2011, 01:11 AM   #1
1LOW4X4
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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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