4.11's:)
 

Yessir, finally broke in, breaking traction in 2nd and have to short shift to 3rd went driving hard...its great...just be careful with them

I don't know much about gearing, I am actually looking into re-gearing the 10-bolt in my 00' WS6. I was going to go w/ 4.11's but I was afraid that I would run out of rpm's at the top of 4th and end up having to shift into 5th by the end of the quarter (if I build more power, which I plan to). My car is mostly stock, so I estimate I would trap in the ~101 range. What does 4th top out w/ 4.11's??? ~110 mph???

i don;t know...ill look tmrw, i plan n having 440 to the wheels in 2 weeks...but im keeping the gears

Went to the track and I finished the 1/4 without shifting into 5th with 4.10's.

4th w/ 4.10's ends around 112 mph at 6100 rpm.

just curious whats so bad about shifting into 5th?

on the big end of the track the upper rpm hp is whts gonna give you your trap. essentially the shift will take you out of that rpm and turn ur rear gear into a high 2.XX rtatio instead of a 1:1 4:10

It depends on your tire size and rpm. A friend of mine is running 4:10's in a N/A car mid 11's at 119 and says he wishes he had something more like 4:30's.

I have heard of durability/reliability issues w/ the 4.11's being put in the stock 10-bolt in place of the 3.42's. Don't know if it is true or not. Would upgraded housing covers and supports on the diff. make any difference at all w/ this swap?

Those are very respectable #'s.....do you plan at running at the track?? I'm almost thinking that 4.11's are going to be too much gear for that application. How are you planning on building the power; N/A, FI or nitrous application? Keep us posted on how things hold up.

I have all bolt ons minus the ls6, and i have the blower on my kitchen table