So do you think your going to give the 2.75 a try? I will be trying it this year and think it may be too much but it’s already in my trans. Cope trans brake, 2.75, 4.1 rear gear with 29.5 tall tire. 418 small block
Chances are, if a deeper low gear hurts your short times it’s a chassis/converter issue. I suppose it could be an engine combination issue as well.
You will have more torque at the rear tires, which makes the same chassis/shock tuning deal with the added speed and force caused by the lower gearing.
I lived through the huge migration to the powerglide. Most of that was caused by the limited selection of shocks and most guys were using SS springs and pinion snubbers (Chrysler guys) or a ladder bar.
Both have a relatively short, high instant center and if you can’t move it forward and down or at least control axle movement with your shocks the lower (higher numerically) low gear can hurt your short times.
