help 8 3/4 gear

I think this rear end was made for some Mopar power Geeezz.#-o
Look at those springs,
I was hoping on 3.23,. There goes my 60' time.:sad3:

3.55 gear and a revving 170 low deck at 2.700 lb's was the plan.
But all of that will come later.


But with a taller gear I could hit the hwys better and get better gas mileage
Witch is a plus. the heavier springs might be a little tight for a good ride in the 66valiant compared to a heavey big block barracuda.:scratch:

Thanks for your help :-D