[MIKE 04 GT]

i have seen post for the differance between 373 and 410. but what is the differance between 355 and 373.

[r3dn3ck]

about 13% of rpm at any given speed. I have 3.55's... they're about the perfect gear for my purposes. If you're using a 4.6L then a set of 3.73's is great. If you have a 5.4 swap like me, the 3.73's are just too much.

[TheBusher]

Originally Posted by r3dn3ck about 13% of rpm at any given speed. I have 3.55's... they're about the perfect gear for my purposes. If you're using a 4.6L then a set of 3.73's is great. If you have a 5.4 swap like me, the 3.73's are just too much.

wrong, there is about a 5% difference in rpm. I would def go 3.73s, unless you plan on staying N/A, in which case you might wanna consider 4.10s

[2000stangGT]

imho there is no point in ripping apart rear end if you going to go from 3.27 to 3.55

[G.T. Rags]

Originally Posted by 2000stangGT imho there is no point in ripping apart rear end if you going to go from 3.27 to 3.55

+1

my friend was gonna put 3.27's in his 98 until i smacked him upside the head....

turns out it was a slap well worth it, he had 3.27's already

[Blk01ponyGT]

3.73 is definately good gear ratio. i put mine in not too long ago and i love them, never drove a car with 4.10's tho

[StuTheMusicEngineer]

love my 4.10s! when i get my supercharger its prolly gonna be to much for street with street tires....slicks + 4.10s + supercharger...works good I hear

[TheBusher]

Originally Posted by StuTheMusicEngineer love my 4.10s! when i get my supercharger it prolly gonna be to much for street....slicks + 4.10s + supercharger...works good I hear

I have a friend who has 4.10s with a whipple at 10 psi... he spins all the way through 2nd on the street. Yeah, I would say they're a little much

The 4.10s will be good on the track as long as you're not running out of gear. My friend hits his rev limiter at 112 mph in 4th. So as long as you're trapping less then that, you'll be ok (you really don't want to have to make a reach for 5th at the track).

[invisa stang]

which gears are better for gas milage though?

[MIKE 04 GT]

what is the differance in mpg.

[TheBusher]

Originally Posted by invisa stang which gears are better for gas milage though?

Difference in Gas Mileage Between 3.73 and 4.10's
If there is any at all, it won't be more then .5 mpg

I think the 4.10s will do better in town though.

[r3dn3ck]

Originally Posted by TheBusher wrong, there is about a 5% difference in rpm. I would def go 3.73s, unless you plan on staying N/A, in which case you might wanna consider 4.10s

if you're gunna call me out on being off by a few % on a rough estimate, at least be correct with your own.

8% difference.

[2000stangGT]

if your staying n/a go 4.10s, if your going blown or fear the gear go 3.73s

i like my 4.10s and mines a daily summer car

[kennyGT]

the easy way for the new guys to see it is this way

3.27's= 3 and 1/4 turns
3.55's= 3 and 1/2 turns-1/4 increase
3.73's= 3 and 3/4 turns-1/2 increase
4.10's= 4 and 0/4 turns-3/4 increase

[gsjohnson]

Originally Posted by 2000stangGT imho there is no point in ripping apart rear end if you going to go from 3.27 to 3.55

Really? Based on what? I am giving serious thought to installing 3.55s, I'm running a P1SC with 9 lbs, of boost and plan on making the 500 mile run up the 101 to the Monterey Historics. There are numerous Ferraris, Porsches, Lambos, etc. and others that make this run and we will run speeds of 140 plus> I plan on keeping up with them...

[2000stangGT]

well if your blown 3.55s are an option, but most do 3.73s

to me its just not worth ripping apart rear end just to do that small of a change. if your upgrading rear already then sure. but just to do 3.55 gears, i see it as a waste of money unless you can do it yourself

[kennyGT]

Originally Posted by gsjohnson Really? Based on what? I am giving serious thought to installing 3.55s, I'm running a P1SC with 9 lbs, of boost and plan on making the 500 mile run up the 101 to the Monterey Historics. There are numerous Ferraris, Porsches, Lambos, etc. and others that make this run and we will run speeds of 140 plus> I plan on keeping up with them...

u can do a lil over 150 with 3.73's and be in a better power range over 100

besides who in the hell roll races past 140? unless they run 10's

[Smoothgrandmama]

Originally Posted by kennyGT u can do a lil over 150 with 3.73's and be in a better power range over 100 besides who in the hell roll races past 140? unless they run 10's

You on Crack Kenny?


Yes You CAN Do a little over 150 But You cannot Cruise There.

With 3.73's You have no power after 125.

With an Auto You lose Your power @ 115.

In an Auto With 3.73's You reach 154mph @5400 Rpm's

[G.T. Rags]

Originally Posted by Smoothgrandmama You on Crack Kenny? Yes You CAN Do a little over 150 But You cannot Cruise There. With 3.73's You have no power after 125. With an Auto You lose Your power @ 115. In an Auto With 3.73's You reach 154mph @5400 Rpm's

+1

[Smoothgrandmama]

Hmmmmm

I want a Cobra, So much Better @120+ speeds!
Gotta love a 6 speed With 3.55's!