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373s or 410s

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Old 03-31-2008, 01:04 PM
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Default 373s or 410s

I have 2001 trans am with a 6 speed and I am debating what gears I should get, the car is my daily driver and I dont take it to the track so what do you guys think. I really appreciate any feed back. Thanks!
Old 03-31-2008, 01:09 PM
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If you run on the interstate much get 3.73's. Thats what I have. If you are strictly around town and at the strip, then go with the 4.10's.
Old 03-31-2008, 01:17 PM
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373's are the BEST street gear imo. 410's would obviously be better, but for gas mileage, you dont want to be way high in the rpm range all the time. You would also have a bit of trouble hooking up with 410s without some sticky tires.... then you have to worry about breaking the 10 bolt, and it just becomes a big mess.
Old 03-31-2008, 01:29 PM
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3.90's... Best of both.
Old 03-31-2008, 02:25 PM
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I am kinda lean'n towards 373s cuz I want a practical car too.
Old 03-31-2008, 04:25 PM
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with 410s on the freeway doing about 75mph what are your rpms at?
Old 03-31-2008, 04:28 PM
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With 3.73s 75mph @1600-1700 rpm
Old 03-31-2008, 04:34 PM
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get 4.10's... I'm an auto and have 3.73's and love them.... you being an M6 can get away with a lower gear and your driving style... Your gas mileage will mainly depend on how you drive it and where you shift at..
Old 03-31-2008, 04:52 PM
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if with 410s I am sitting at about 2000rpms to 2300 rpms in 6th that would be great
Old 03-31-2008, 08:31 PM
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Originally Posted by carbonfiberbird
if with 410s I am sitting at about 2000rpms to 2300 rpms in 6th that would be great
That's about where you'll be. It's nice having a 6th gear on the highway with 4.10's. I had 4.10's in my 12 bolt and loved them. Gas mileage didn't really suffer unless the foot mod got tired of driving normal...haha.
Old 03-31-2008, 08:37 PM
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4:10's all the way
Old 04-01-2008, 01:24 AM
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Originally Posted by carbonfiberbird
if with 410s I am sitting at about 2000rpms to 2300 rpms in 6th that would be great
my 4.10 does me great u can drive it about anywhere and get decent gas milage and it pulls so much harder than the stock unit
Old 04-01-2008, 08:33 AM
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410s do not render the car not practical.....that is downright nutty, u ppl i tell u....
Old 04-01-2008, 08:38 AM
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in my opinion, it doesnt matter if its A4 or M6...get the 4.10s
Old 04-01-2008, 10:28 AM
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With the m6 you shouldn't bother with the 3.73s. It's not enough difference from where you are at. The m6 deserves at least 3.90s and unless you are mega high hp probably 4.10s. I agree with everyone else here on rpms. You will barely loose 2 mpg on the highway.
Old 04-01-2008, 12:59 PM
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I was still hitting 28 MPG with my 4.10s on the highway. I cruise @ 1900 rpm doing 70 MPH. Its the perfect gear for an M6 car. Double overdrive FTMFW!
Old 04-01-2008, 01:52 PM
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4.10 ratio is the best option for a 6 speed car. You canrun your RPM Calculations from our website to figure what you would be turning. Let me know if you have any more questions.

Jeff
Old 04-01-2008, 05:45 PM
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I appreciate all the info. I think I am gonna go with 373s, I wanna keep the stock rear end, plus it will guzzle gas with 410s. thanks
Old 04-01-2008, 06:03 PM
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Originally Posted by carbonfiberbird
plus it will guzzle gas with 410s.
Negative. Milage stays the same. Just replace fifth gear with 6th during normal driving, and youre actually spinning less rpms. Sixth gear is almost unusable with 3.42s.
Old 04-01-2008, 06:32 PM
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hey wait a minute i have 3.73 and going 70 i'am at around 2400 is this to high?


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