when your talking gear ratios on rwd its the rear axle gear ratio. witch number is our "gear ratio"
1. 3.58
2. 2.02
3. 1.35
4. .98
5. .69
final drive gear 3.94
is it our final drive gear?
Each Gear has its own ratio as you have listed. The Final Drive gear is normally your fifth gear and should give you the closest to a 1:1 Ratio.
The final drive is your ring and pinion gears in your differential, not fifth. Also normally with 5-speeds, fifth is over drive and fourth is your "1:1" a.k.a. "direct drive" gear. But each gear has it's own ratio(which you posted).
its an old concept. time for something new to take the reigns. - Z yaaaa