What gear is in my 7.5 rearend?

[TurboJoeD.]

Does anyone have any idea of what gears likely came in a 92 four cylinder with auto trans?

 

[sweat90lx]

3.27

 

[TurboJoeD.]

could it be lower? Cause this thing feels low--like ALMOST too low gear for a street car to me. But the tach it way off and it has open exhaust right now so that could be throwing me off. Also, it spins both wheels--I thought that was wierd. I have been building this car since October and Sunday was the first time for me to drive the car really, so I don't know what kind of fuel mileage I am getting yet. I am telling you it feels looow though. I keep forgetting to spin the tires and count the driveshaft revolutions when I have it on jack stands.
How does that work anyway? Count the drive shaft revolutions per one revolution of the tire, right?

 

[68stang351]

What does the rear end tag say?

 

[fiveohlxhatch]

You can check your door tag for the axle code. I believe auto 4 cyls came with 3.73s to make up for the anemic engine.

 

[68stang351]

You can check your door tag for the axle code. I believe auto 4 cyls came with 3.73s to make up for the anemic engine.

This is true. My friends car (an ex-4cyl auto) had a rear with 3.73's. Its in my 90 for now as a loaner until I feel like putting the rebuilt 8.8 back in it. I guess that would be a good spring project for my next weekend off.

 

[stykthyn]

how much hp can the 7.5 take? I have one in my car and an 8.8 is pretty low on the list due to budgetary reasons. I have a gt40 motor that will be in the 275 range.

 

[TurboJoeD.]

I looked at the tag and wrote down what it said, but I left it in my office. 373 was at the beginning of the second row of numbers though. I don't know how much they can take--but I plan to give it hell. Is it wierd that it is a posi?