GrayGhost01GT

I am planning on installing FRPP 3:73 in my Automatic GT is that good? I drive Highway and another thing i dont like that im a worried about is it true that my gears driving up my RPM's up higher at cruise and Acceleration? Explain is this harder on my engine? And how much should the install cost me ?

Ck9887

If you do a fair amount of Freeway drving then 3.73s were prob a good choice since you are auto. Your Rpms will be slightly higher on the freeway but not a whole lot. Its really no harder on the engine and may actually be a little less stress on it around the city.
You will definately notice an increase in performance and acceleration.

Obselite

not any worse on your engine than stock. gas milage is not effected...well, it is (very little)...most say about 1-2 mpg if you're conservative. Most people aren't however, because they like to feel the "pull." gears will be between 150-225 depending on purchaser, and install will run between 180-275 depending on who you go to.

Ck9887

The gears will run about 200$ by the time you get the install kit.. Install will run about another 200$.

DuckyGt

My gear installation ran around 200 and then 200 for the gears for a whopping grand total of $400. So any where around there is reasonable. 3.73's are a good choice if you drive the freeway (sry highway) a lot. texan here

The Great Cornholio

With an auto go with 4.10s. I use my car on the highway as a daily driver and they are among the best mods I have done.