hello guys, im wondering if anyone can help me out, i own a 1990 mustang gt convertible, im swaping my gears from terrible 273's to a 355's...what i need to know is what is the caliberation gear and what color is it to adjust my speedo gear...i have changed my old turbine wheels to the newer pony's (16's) i have 245/50's all arround , not sure if this makes a difference, my freind put 373's and he used the 21 tooth, red colored gear, but i have the 355's, please help.



thank you.

 

if im not wrong, you will need the black 20 tooth one, as long as your total hieght has not changed drastically.(tire hieght). or u may have to do some tweeking



c1dz-17271-a black 20 tooth

 

You need the red 21 tooth gear right after you sell the time and money wasting 55's and buy some 73's

 

yes, 3.73 is high enough for the track, but low enough for a daily driver

 

the one thing i am missing...

 

Got bored and felt like digging up the oldest Gear thread.