I ordered my 9" about 3 weeks ago and since then ive done alot of reading about gears for N/A cars and it seems that the general opinion is 4.56s and that it makes coming out of the hole waaaay easier.
Here will be my setup once the rear end is installed my setup:
forged 347
MS4
stock 241s (soon to be replaced with prc 215s)
ls6 intake (soon to be replaced with 102/102 combo)
twin disc center force
3.5" aluminum pst driveshaft
MWC 9" 35 spline axles and a wavetrac
adj panhard
anti roll bar
adj lcas with lca relo kit
DA strange coilovers in the rear (rear spring rate unknown, Eric at MWC said hed hook me up with the right rates)
on 295/45/17 (29x11.5-17)


so what do you guys say? im kinda at the point where i either have to take the 430s i ordered or call him and get them changed like asap lol

if you have 456s whats it like driving them in town? car is a weekend worrior and may eventually get a 200-400 shot

 

Well you will need to run a 28" tall tire if you go with 4.56. But again like you mentioned N/A if your going to spray it not a good idea. So for N/A yes go with 4.56 if your going ot spray it with 200-400 shot I would recomend 3.90-4.10.

 

I have my Rear coming shortly with 4.33's. Im running a 28' tire with 150 shot.

I would agree with the 4.10's for a potential shot of 2-400.

 

Love my 4.56 on the street cruisein speed is fine at about 2100 rpm at about 70 mph M6. gets in rpms quick. But if your going to spray then no go on the 4.56.