What Gears are You Running?
 

I can't live with the stock 2.73s so I'm going to upgrade to 3.55s. Anyone running this ratio?

Gary

You will get many different opinions on this one. I have 3.55s in my '88 red SCHP 5-spd and really like them. They put the car in a range of performance and driveability ( haul but not over rev at sustained highway speeds) . If the car is an auto, you might want to consider 3.73s.

A lot depends on what you want it to do with it. IE: daily driver or howl the hides every time you leave the house (4.56s). Good luck with your decision.

3:73's for me.

3:73 in my notch too!

I've ran both gears in my street Mustangs over the years and 3.73's are in my opinion, the way to go. You'll see around 2450 rpms @ 75mph on the highway with a 5 speed and 275-45-15 tires. If you have your heart set on going with 3.55's I have two new sets of Ford Motorsport gears for an 8.8that I will ship to you for $140. Please PM me if I can help you out...

3.73 speedometer gear
 

I have a 3.73 in the WI SSP and the speedometer was way off when I drove it. I checked the gear at the end of the speedometer cable and it was a 21 tooth but some of the teeth were worn off which could count for the needle wondering. What did you guys do to get the speedometer close to accurate? I read that the trans drive gear in the 93s had 8 teeth and on the chart, it indicated I would need the max of 23 tooth gear on speedometer and it would still be a bit off. They also mentioned the nylon gears last a little while and then it may break some teeth like the one I have. The other choice was to change the trans drive gear to a 6 or 7 but it is a big job. Any help would be appreciated or will I have to just live with it. Thanks

3:27
 

I have a 93' Cobra disc brake rear in mine it has limited slip and factory 3;27 gears, in the rain you can drift on demand and in the dry it will break'em loose at will

Gary, I HATE 2.73's.....in anything so I don't blame you. I have 3.27's (original gear ratio) in the 93 FHP with the auto trans and it runs alot better than the 2.73's. I also plan on putting 3.55's in the gray coupe to make it more fun to drive.

Gears
 

I'm running 430 Gears on my 1988 Mustang SSP!

I have this exact rear in my 85 (the original 7.5" rear is long gone). I like the 3.27's OK, but I am considering a gear change over the winter to 3.90's or 4.10's (keep in mind I have tall 255 BFG's out back). With the 3.90's and tall tires, my final effective gear ratio would be close to 3.73's, should I ever fix my speedo.