I've been trying to decide which gears to install to replace the factory 2.73s in my '89 GT vert, and I made up this chart to help me decide:
- - - - - - - - - - - @70mph @140mph, Redline @5500rpm @5000rpm
2.73 = 0% shorter, 2000rpm, 4000rpm, 210mph 192mph 175mph
3.27 = 20%...