Best all-around gears ???

[Bullitt-]

Can you figure out exactly which speedo gear is needed for a 3.55 gear with 28" tall tires ?

That is what it proports to do.  Will have to know a tire size that is 28" tall 1st.
varialbes are tire size\aspect\diameter\gear & calculations are made, email on the way

[Chryco Psycho]

275/60 R15

[Bullitt-]

275/60 R15

TYRE SIZE         275   60   15
REAR END RATIO         3.55      
TYRE DIAMETER =       27.99      
TYRE WIDTH =       10.83      
CIRCUMFERENCE =       87.94      
SPEEDO PINION GEAR TEETH =       33.25   
   Did you get the email?   
            

[Chryco Psycho]

Thanks 

[FY1Cuda]

My Cuda is running 3.91s and the car winds hard on the freeway.  65mph @ 3500rpm.  Last time I was getting on the freeway I tried to shift into 5th since I am used to my daily driver, needless to say, I shifted from 4th back into 4th.   

[Chryco Psycho]

I got the Email But I couldn`t open the attachment
 you could PM me here with it

[Bullitt-]

Here are the links to these spread sheets, Cut & Paste to Excel to keep http://www.moparts.com/Tech/tech/img/AUTOMATICchart.xls
http://www.moparts.com/Tech/tech/img/4SPEEDchart.xls

I got the Email But I couldn`t open the attachment
 you could PM me here with it

[vinb]

I got a 275/60/15 tire which is 28.01"/ 89" roll out with a 3.55 gear and a 33 yellow tooth gear. Auto transmission , perfect in my 3600* Cuda...

[crcarch]

Here are the links to these spread sheets, Cut & Paste to Excel to keep http://www.moparts.com/Tech/tech/img/AUTOMATICchart.xls
http://www.moparts.com/Tech/tech/img/4SPEEDchart.xls

Great Link!