373's or 410's

[gfeller2006]

I have an 2000 camaro SS with an M6. Slp cold air kit, and catback is about all the mods I have done as of right now. Still have the stock 10 bolt rear end. Starting to make a funny noise and Im wanting to do the rearend. This a daily driver and will see no strip time. Only some tireburning street racing from time to time. Wondering what gears to go with? Also what is a decent installation fee?

[smoke346]

4:10's FTW. Stock is 3:42. No need to waste money on 3:73's, wouldnt feel much of a difference.

[LT1 > LS1]

you'll see almost no difference from 3.42's to 3.73's.


if you like gear bangin, then the 4.11's are your best friend. you'll be rippin through gears pretty fast man.

[GatorSS]

Since it's a DD, how much highway driving do you do? If you do a lot, go with 3.73.

[Jays00ss]

I daily drive mine with 4.30's. Absolutely love them and even with H&C and all my mods still get 23-24 MPG. 75 MPH @ 2050 RPM's on the highway.

Go at least 4.10's. 3.73's are a huge waste of money with a 6 speed you will not feel any difference and be highly dissapointed.

[INMY01TA]

Since it's a DD, how much highway driving do you do? If you do a lot, go with 3.73.

Bad advice. Doesn't affect gas milaege hardly at all, go with 4:10s.

[RealLiveMD]

3.90's, only option. Don't have to switch gears to 5th in quarter, good MPG, hell they all whine.

[INMY01TA]

3.90's, only option. Don't have to switch gears to 5th in quarter, good MPG, hell they all whine.

Since when do you have to use 5th gear in the quarter with 4:10s on a bolt on car?

[RealLiveMD]

Since when do you have to use 5th gear in the quarter with 4:10s on a bolt on car?

Maybe I was given bad advice as I was choosing my 3.90's, but with just 400 rwhp, I was told I'd be switching to 5th.
With 3.90's though, I can definitely say, I didn't even notice a full mpg change. with mixed driving. Never got a chance to try it out on the track because I couldn't stand the whine.

[Jays00ss]

Since when do you have to use 5th gear in the quarter with 4:10s on a bolt on car?

had 3.90's in my old 10 bolt and had a lot of 4th gear left. Thats why I went to 4.30's in my 9" and glad I did.

[RaSScal]

Plan on a 9" or 12-bolt

[WS6ICK2K]

Not to jack the thread or anything. I was just wondering how much faster a car would feel when switching to 3.42 to the 4.10s.

[RaSScal]

Not to jack the thread or anything. I was just wondering how much faster a car would feel when switching to 3.42 to the 4.10s.

Dramatically, especially with a manual.

[9T8W66]

Since when do you have to use 5th gear in the quarter with 4:10s on a bolt on car?

I agree even with ths stock redline you should be safe in 4th to 112-115 mph

Also considering how small the pinion gear is on 4.10's I heard the 3.90's are better for strength and longevity. That and the performance difference between the two won't be much.

[INMY01TA]

I agree even with ths stock redline you should be safe in 4th to 112-115 mph

Also considering how small the pinion gear is on 4.10's I heard the 3.90's are better for strength and longevity. That and the performance difference between the two won't be much.

I wouldn't choose 390s over 410s for strength. 10 bolt sucks either way.

[9T8W66]

I wouldn't choose 390s over 410s for strength. 10 bolt sucks either way.

I tend to agree but if the car isn't going to see any or even very little strip time then it doesn't matter much. Esp if he's not going with a Sticky Tire.

[INMY01TA]

I tend to agree but if the car isn't going to see any or even very little strip time then it doesn't matter much. Esp if he's not going with a Sticky Tire.

Well in that case there's absolutely no reason not to go with 4:10S.

[jodmartyr]

just got 4 10s drivin around city or highway is same as old 3.23s...worth the diff in mileage

[RaSScal]

Prepare for a 12-bolt; that 10-bolt won't last.

[Hot Black Trans-Am]

I just did 4.10 with my 9" and love them. Little whine, but not bad. Just the sound of performance and strength. It's about a 20% lowering of the power band from what I gathered. So basically your into your power 20% faster and change gears that much faster as well. Anyway that's what I came up with before I made the change. I didn't run through a tank of gas yet and don't really watch my fuel mileage so I won't comment on it.