Rear Gear Ratios V8 vs. 6

I read in an earlier thread that there were only two rear gear ratios in 71-77 Comets; 2.79 and 3.00.

Was one for V8's and the other for 6 cylinder cars? If so, which was which?

If not then what?

 

My '72 v8 has 3.00 the '71 200 6cyl 2.79...

 

It was strictly an option. All the factory AC cars got 3.00 gears.

 

So my '76 Comet has an automatic but was originally equipped with A/C, sooooo . . . should it have 3.00?

The reason I'm asking is that I need another third member and I may be able to get one from a '74 V8 car I was just wondering if that car and mine would have the same ratio.

 

Maybe. Heck....they are so close....I don't think you could tell the difference.

 

This is probably true but a friend claimed a swap from a 2:80 to 3:00 made his son's '65 Mustang feel like a different car... I'm thinking it was more the Equa-Lock in the 3.00(nice to have some resemblance of traction), has close ratio four speed with 2.32 1st gear,

 

I notice a bit of difference between the 2.79 and 3.00. Not only picking up another mpg or two...the 3.00 keeps the engine from laboring as much at lower rpm. This was with a C4 transmission.

 

At the very least there should be a difference in the speedometer reading.

 

Agreed, you'll probably need to add or subtract a tooth on driven gear, depending on which rear you're using...

 

Or just compare it with the GPS/Speedo app on my tablet and drive by the tach.

 

My '73 came with 2.79. V-8, manual transmission, no A/C.

 

My 73 has 2.79, factory AC and C4. I can't say that it was/is the original gear ratio, but believe it is original. There is nothing to indicate it has ever been changed, the metal tag is still on the housing/pig.

 

Yep. 1973 Comet, 302, C4, factory A/C with 3.00 gears.