He is correct.

I went from 2.73s to 3.73s, and had all kinds of rev limiter problems. Shift points were adjusted, and no problems.

 

ya, i used a power programmer to handle all of that stuff for me.

 

Just from MY personal experince my car didnt require tuning going from 2.73 to 3.73 At WOT the car shifted at the correct rpms. I was surpised myself that it shifted right, the only thing that was wrong was the speedo

 

I've had 2.73's, 3.23's, 3.42's, and 3.73's. My current is 3.73's, and I really like them, but I don't have to drive my 95 much anymore. They aren't THAT bad on the highway either, and the mileage with the 3.73's versus the 3.42's was very slight.

I would say though that unless your fairly hardcore, then stick with the good overall performance of the 3.42's. They are plentiful, and easy to live with on a daily driver. The are a LOT more forgiving at the track too...

Dave C.

 

****, im thinking about goin 488 gears in my car.... that would still give me better mileage than an auto with 373s.

 

My car with mods in sig ( the z) got 23 mpg on the way to the track all highway miles so 3.73 gears can get good mpg.... BTW that was with a mail order tune from Joe Overton ..... Car still needs to be put on the dyno to get it 100%.....

 

The only time I have not had to change the shift settings and only change the speedo is when the gears where switched from 3.23 to 3.73. The guy liked how the car shifted so I left it alone. It never hit the rev limiter. Usually all autos that came with the original 2.73 gears need to be programmed to shift correctly. Thats just what I have run across on the last few I have done.