- Jan 17, 2016
- Reaction score
- Ram Year
- 14 Sport
3.21 it's going to carry 1st gear alot farther then the 3.92 geared truck,the 3.92 truck is going to be shifting out of first way sooner from a 20 mph roll,and will also make one more gear change,and every gear change loses you time. My truck was as fast with 3.21's as it was with 3.55's Phil.It depends on your power band more then anything,i built mine to build torque,and it spun the rollers to 572 lb-ft at 3200 rpm,but only made 500 rwhp ,so the taller gears worked as good or better then shorter gears,but if your truck has a bigger cam,and is built more for top end power,then the 3.92's might be the better choice. I kicked my ass for ever believing Green and going to 3.55's,i knew i should of followed my gut,but at the time i figured he knew more about the trucks then i did,20/20 hindsight afterwards,lolHuh?? ... LOL
Apparently rear end gear ratio doesn't matter but if an exact clone of your truck was made and had 3.21 gearing and your truck has 3.92 gearing... Which one would you want to be behind the wheel of in a race to the next stop light(0.4km away) from a 20 roll??