Converting 904 transmission to 2.74 low gear set

It works well if your gears aren't too deep, normal street gears from 2.76 up to 3.55. I used it at the track with 26''tires and 4.30 gears and it really(in my case) didn't make a difference as I ran the standard 904 in one trans and a low gear set in another 904.Not only me, but others at the time stated the same results.All were track cars.Either way I wouldn't hesitate to use it.