If you are willing to remove the valve body, it would be easy to insert a spacer or spring against the face of the 1-2 command valve plunger, which should prevent downshifts to first gear.
Alternatively, loosening/dissconnecting the throttle cable might also be helpful, but could cause other complications.
Last edited by tangofox007; 09-16-2009 at 10:55 AM.
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