90Mustangfan

Im going to put gears in a 90 mustang GT 5 speed manual, heres the question, what will my top speed be if i put in 3.73? will I be shifting gears every 3 seconds? would I notice a difference if I put in 3.55 opposed to 3.73, what will be the top speed for 3.55, and which get better gas mileage. How much does it cost to get them installed?

horatio102

depends on the tire size you're going to run.
figure on spending about $500 for parts and labor.

vfast

if your worried about gas you have the wrong car as for the gear not much differece your driving style will have more to do with it than gears....I use both gears I do like the 55's better good use of first and easy to skip gears