|
The bottom gears should be fine, but 5th would feel drastically different. Should be nice for fuel efficiency, but you won't have much punch in 5th doing 2200 rpm at 65, for example (if I had a dyno chart, I could tell you what the differences in acceleration in g's would be). Shouldn't be dangerously slow, but the difference will be very noticeable. I'm only mentioning it so he has that in mind to decide. Personally, I'd do it as I hate unnecessarily short gearing and would always prefer top gear be a tall overdrive instead of matched to the lower gears. Should be much quieter, too, letting you hear all the creaks from the chassis even better.
|