Here is a beter solution.
swap over the needles, the pverlay, and the gauge bezel.
Cheap way:
transfer the trans temp motor and bulb.
total cost:
0 dollars.
However, you may need to replace those Motors anyway because they will fail, so just drop 7 new ones in your old cluster at the same time.
$31.
Paying to have the ODO reprogrammed
AND still having to do the above work in a year or two when the defective motors fail= suxorz
ryan: same thing. buy the motors (all 6 or 7) and swap them yourself. I did it all in an hour.