canamwrecker

I been hearing alotta about how if u put stepper gears it helps somoving could someone Elaborate please

dawson1112

Steeper gears, It changes the rotation of the rear wheels in relation to engine RPM...

2.73 gears means for every 2.73 revolutions of the drive shaft the rear wheels turn 1 full revolution
3.73 gears means it takes 3.73 rotations of the drive shaft to make 1 revolution of the tires.

2.73 = better gas milage less torque
3.73 = more torque less milage.

canamwrecker

Ok.. I thought it was somthing fancy instead of changing the rear end.. and I'm gonna a assume 4.10s would be even worse gas milage?

bluebeastsrt

yep but they are awesome for performance!

88 orangepeel notch

Not as much as you'd think. Maybe a couple mpg at most.

Do you have an auto or 5-speed ?

canamwrecker

I have A 5 Speed... and rite now.. it runs around 2800 at 60

88 orangepeel notch

If it's turning 2800 rpm at 60 mph, someone already put steeper gears in that rear end, and I mean steep. If your speedo is accurate, you have at least 4:10's in the back. Which means 1st gear is really useless on the street.

Do you like it the way it is now?

dawson1112

wow my tach sits at about 2100 with 3.73s at 60mph. last car I had with 2.73s it ran about 1800 at 60. Maybe you got 4.30s

canamwrecker

Ok I was just out for a drive and 60 is around 28.. 70 mph is 3000 to 3050... and first is pretty usless.. if I'm at a stop I start in 2nd lol

dawson1112

If you wanna know for sure what set of gears you have then go out and jack the back wheels off the ground. Count the number of times the drive shaft rotates for 1 complete revolution of the back wheels.

3.73 would be about 3 3/4 times
4.10 would be real close to 4 1/8
4.30 would be just over 4 1/4 times.

There are also other sets but those are more common.

Some other sets would be
3.55
3.90
4.56
The only other way is to pull the rear diff cover and look at the number stamped on the end of the pinion gear.