[kellar86]

Can aybody tell me what gear ratio would be in a 1980 Mustang with a 255 V8 automatic?

 

[speedytang]

255 in a Fairmont only had 2.73s so I would guess the Mustang had the same.

 

[FoxChassis]

Can aybody tell me what gear ratio would be in a 1980 Mustang with a 255 V8 automatic?

Do you have the car now? The OEM gear ratio will be on the VC Label ("door sticker") under AX and on the axle tag attached to the differential. Post codes from either or both if you can.

The ratio could be 2:26:1, which seems to be prevalent with the 255 V8 in the Mustang/Capri.

 

[speedytang]

Wow, With 2.26 no help getting that 150hp 255ci moving anyplace quick.

 

[FoxChassis]

119 HP in '80

 

[kellar86]

the sticker has been removed from the door and the tag is rotted off. What gears were available?