View Full Version : which gears are best for highway racing/speed?

09-08-2003, 06:27 PM
i'm not really too concerned w/ 1/4 mile time.. i enjoy good top end more.. if i go w/ 4.10's will it make 4th gear weaker.. and what will each gear top out at.. i usually wont go over 120

also for daily driving.. i've heard 4.10's will sit at 2k rpm in 6th gear going 80 which isn't bad i think

09-08-2003, 06:36 PM
Id say 4.10's are good but also look at 3.73's they work well with 6 speeds too.If your going to get gears and you have a 6 speed I say go with 4.10's they will wake your car up a lot.What mods do you plan on doing?I say go with 4.10's if your planning on getting gears. :D :drive:

09-08-2003, 06:39 PM
lol.. yeah i plan on gears.. heh.. other then that nothing real serious just headers, ls6 intake, lil bit of tuning and i think that'll be fast enough for me

09-08-2003, 08:21 PM
If you are not concerned with the 1/4 mile stay away from 4.10's. 4.10's are for low end torque, and great for the 1/4 mile. If you're thinkin' about racing on the highway, say 100+mph, then just leave it stock. I've quickly run 150+mph on my stock rearend, just my opinion :usa:

09-08-2003, 11:26 PM
3.73s are the perfect street/strip gears, IMO.

09-09-2003, 01:33 AM
What gears are best depends on from what speed to what speed you'll be racing from and to.

The gear ratios in your T56 tranny are as follows...

1st - 2.66
2nd - 1.78
3rd - 1.30
4th - 1.00
5th - .74
6th - .50

I'll assume a rev limiter of 6250 and a tire height of 25.66. From this we see that our top speeds by gear for a 4.10 ring and pinion are...


BTW, at 80 MPH in 6th gear, you'll be turning 2147 MPH.

If you want me to figure all of this for 3.73 gears, lemme know. :burn:

09-09-2003, 01:38 AM
I would like to know the ratios on 3.73 actually.

09-09-2003, 01:06 PM
3.73s are the perfect street/strip gears, IMO.

What he said!

09-09-2003, 01:34 PM
I love the 4.10's

4.10's w/ Drag Radials
3.73's w/ Street Tires (4.10's shred them up)

09-09-2003, 03:56 PM
I would like to know the ratios on 3.73 actually.

Ok, take all of those MPHs by gear I gave for 4.10s and multiply them by 1.0991957104557640750670241286863

Of course, multiplying by 1.1 will get you really close. ;)