If you guys need to drive with only 1st and 2nd after the high clutch goes, its not a problem at all. The high clutch has been gone on my silver for about 6000 miles. It will do up to 90 mph at red line so driving on the highway is possibly but stick to short trips if you absolutely must. Leave the shifter in 2 at all times accept when decellerating, then I pop it into "D" to eliminate the engine braking affect. I usually averaged about 14-15 mpg while driving like this, and surprisingly, cruising at about 55 mph still gets you the best mileage as when i was making more highway runs to my friend's place about 15 miles away on the highway and I was able to get about 17.5 mpg at best. This was with 93 octane with ethanol and surprisingly, i usually got worse without ethanol but that was only 91 octane.
Hope this helps you guys as well as anyone else in the future who have to deal with this.
