want new gears

[blackFbird_98]

ok its a 98 firebird with a 5 speed and would like to have 4.10 but not sure if they will work so will probably have to go with 3.73what is you guys's opinion on that and where is the best place to buy them from as far as price and customer relations

['94firebirdv6]

4.10s are a very agressive gear and are probably not well suited for daily driving. but they will fit. i run 3.73s and i like them a lot. as for gears, mine are Motive and i got them off ebay. thats the cheapets place to find them. i have no complaints about "customer realtions". also unless your car is equipped with the Y87 package, you will also need to upgrade your differential to a Limited slip differential. because the gears are series 3 and the stock diff is a series 2. so you need to upgrade to a series 3 diff. also it would defeat the purpose of upgrading gears if you only have an open differential.

[FireFighter]

3.42's for an a4 and 3.73's for an m5. Others have had great times with 4.10's but, are losing the gas milage. Little g is doing great with 4.10's. Unless you drag race a lot I would stick with 3.73's. Are you running stock 3.23's now?

[blackFbird_98]

ya i have 3.23 and a powertrax locker system in it now I was thinking of the 4.10 but not sure how it will react on the interstate doing 75+ mph

[blackFbird_98]

http://www.powertrax.com/noslip.html ok this is what i put in last summer so did that replace the differential or did it stay the same series #2

[Little G]

~3000rpm @ 80mph in 5th, you get used to it quickly

[FloydSummerOf68]

I'm putting 4.10's in my auto in 4 days.
Go big or go home. If you're worried about gas mileage, don't mod your car. Hope you don't want to ever put a cam in then.

['94firebirdv6]

4.10s in an auto [img]graemlins/omg.gif[/img]
habe fun lol
hello 12mpg

[blackFbird_98]

well if i stick 4.10s in will i need to chand it to a series #3 since i just put in the powertrax system which I didnt change the Diff i dont think but not sure I need help with that part aswell

[ellik]

your 3.23's should have been 3 series anyway, correct? even if they are not, and everything is 2-series based now, you can find a set of 2-series 4.10s to go with them.

[BLLDOGG]

Originally posted by FloydSummerOf68:
I'm putting 4.10's in my auto in 4 days.
Go big or go home. If you're worried about gas mileage, don't mod your car. Hope you don't want to ever put a cam in then.

amen [img]graemlins/bowdown.gif[/img]

Originally posted by '94firebirdv6:
4.10s in an auto [img]graemlins/omg.gif[/img]
habe fun lol
hello 12mpg

4.10 in an auto would be bada$$

[99v6cam]

actually its 18mpg city (in a v6 mustang at least) my friend brandon has em. They're fun as hell

[Tru2Chevy]

Originally posted by ellik:
your 3.23's should have been 3 series anyway, correct? even if they are not, and everything is 2-series based now, you can find a set of 2-series 4.10s to go with them.

Since you have an M5, you should have 3.23's and a 3 series diff stock. If you still have the stock 3.23 gears, then your locker is a 3 series.

- Justin

PS - If you want low E.T.'s, go with the 4.10's :D

[FloydSummerOf68]

Originally posted by BLLDOGG:

</font><blockquote>quote:</font><hr />Originally posted by '94firebirdv6:
4.10s in an auto [img]graemlins/omg.gif[/img]
habe fun lol
hello 12mpg

4.10 in an auto would be bada$$ </font>[/QUOTE]Yes it will be...I'm getting them in on friday.
And I will be seeing MUCH more than 12mpg...it's all in how you drive. I won't have it floored 24/7. As long as I cruise at or under 70 it will be VERY acceptable gas milage. I'm getting 300-320 with 90% city miles and will be happy with 250-275 and some badass 4.10's.

[FireFighter]

Originally posted by FloydSummerOf68:
If you're worried about gas mileage, don't mod your car.

Explain this please, anytime you make an engine more eff. gas milage will increase. This depends on how you drive of course.