273's stock in an 89?

8

89convstang

New Member

May 19, 2004

3

0

0

May 22, 2004

#1

• May 22, 2004

• #1

Was it common for an 89 5.0 to come stock with an AOD and 273's? If so what is the best bet for some gears good for street running and not to high for normal freeway driving? I had heard that 89 automatics usually came factory with 308's and not 273's. Why is mine different? it's still a stock rearend. 100% orginal, would really appreciate a few different ideas for some new gears!

 

V

v8only

Active Member

Jul 3, 2003

2,378

22

49

May 22, 2004

#2

• May 22, 2004

• #2

both gear sets were factory options. some cars came with 273s, others with 308's luck of the draw, that's it.

for lots of highway driving, don't go past 3.73's

 

1

10HoleLX

Member

Mar 6, 2004

257

0

17

Southern California

May 22, 2004

#3

• May 22, 2004

• #3

You had to request an optional 3 27 for an automatic FOX car before buying it.
If you didn't you would get the conventional 2 73 gear set.
My car was originaly an automatic with 2 73's
Now I have a 5 speed with 3 73's. Major difference in performance and gas mileage!

Typo above!
Yes 3 27 optional gear for slush o matic

 

Mustang5L5

That is…until I whipped out my Bissell

Mod Dude

Feb 18, 2001

43,252

17,937

224

Massachusetts

May 22, 2004

#4

• May 22, 2004

• #4

The standard gearset for all fox 5.0's is 2.73's. That's for 5-spd and AOD.

You could order optional gears

3.27's for AOD's
3.08's for 5-spd

MOST 5.0's came with 2.73's

 

jwzg

Member

Apr 6, 2004

237

0

16

Prattville, AL

May 22, 2004

#5

• May 22, 2004

• #5

3.55s or 3.73s are the way to go. You will probably have someone come on here and say to go with 4.10s. You will take it in the shorts on gas mileage and engine wear if you do highway driving with 4.10s.