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View Full Version : 4th Gen fbody with 3.42 gears?

The Project
04-14-2008, 06:55 PM
Looking to find out which 4th gen fbodies came with 3.42 gears in them.

Also did they come with a diff or not?

Anyone know?

Want to swap out my 3rd gen rear for a 4th with 3.42 gears.
Mr. Luos
04-14-2008, 06:58 PM
They all have a rear diff.

The 3rd gen rear is a different width than the 4th gen rear. Otherwise, I believe they are the same.
The Project
04-14-2008, 07:31 PM
They all have a rear diff.

The 3rd gen rear is a different width than the 4th gen rear. Otherwise, I believe they are the same.

I want to swap my rear and replace it with a 4th gen. Since I already have 3.42 grears I want to see if I can get the same rather than say 3.23's. I also have an auburn diff. So I want to know what kind of diff. came with the 3.42's. I'm not sure if I have a 26 or 28 spline.

Easier to swap out the entire rear.
Silver Streak
04-14-2008, 07:43 PM
Easier and cheaper.. yes.. but your car WILL look retarded with the rear wheels sticking out 2 inches on both sides...
Wesman
04-14-2008, 07:51 PM
Easier and cheaper.. yes.. but your car WILL look retarded with the rear wheels sticking out 2 inches on both sides...

So 4th gen rears are 4" wider than 3rd gens??

Interesting, didn't know that.
Silver Streak
04-14-2008, 07:55 PM
So 4th gen rears are 4" wider than 3rd gens??

Interesting, didn't know that.

Yeah.. every gen's rear is slightly diff size... its weird...
The Project
04-14-2008, 08:02 PM
So 4th gen rears are 4" wider than 3rd gens??

Interesting, didn't know that.

Yes.....the 4th gen is about 1.75" wider on each side. I am looking at getting C6 rims which is why I want a 4th gen rear (to eliminate using spacers in the rear).

What about gear ratio's?
Silver Streak
04-14-2008, 08:04 PM
Yes.....the 4th gen is about 1.75" wider on each side. I am looking at getting C6 rims which is why I want a 4th gen rear (to eliminate using spacers in the rear).

What about gear ratio's?

All 6 speeds came stock with 342s...
rc74racer
04-15-2008, 02:12 PM
Giant waste of time IMO to replace one POS rear with another just to skip out on using spacers. To answer your question only 6spd cars have 342s. Autos come in either 293, 308 or 323.
Silver Streak
04-15-2008, 02:15 PM
Giant waste of time IMO to replace one POS rear with another just to skip out on using spacers. To answer your question only 6spd cars have 342s. Autos come in either 293, 308 or 323.

273 not 293.. but otherwise correct
rc74racer
04-15-2008, 04:58 PM
273 not 293.. but otherwise correct

This is true must have be thinking one thing and typing another.