hi all,

what brand is best? lightest weight? price?

also, why was this not offered on auto. GT's?

thanks!

 

You can probably find 3.55 take offs really cheap.

But why 3.55s??

Slap in a 3.73 like I did.

The most expensive part of the swap is not the gear itself but labor (unless you're doing it yourself which I dont reccomend unless you've done it before).

 

why get 3.73's when you can get 4.10s

 

i just want to get a little extra kick...nothing crazy...

so when on the highway its still very comfortable, gas mileage is good.....

also, i read some about a tuner who tested gears on auto. GT's and said 3.55 is the best...

in the future if i want to do supercharger, 3.55 will fit it fine...

 

Because first & second gear is insane low know.

I think 3.55 should be perfect, more so with a blower...........

 

i have 3:55's that are frp. installed them my self & have had no gear wine or any other problems. they made the car feel much better & it still gets great gas mileage.

 

that is exactly what i'm looking for. thanks for this information. im looking for that litte extra kick..nothing crazy

when cruising at 70 mph, what rpm are you at now? i assume before it was around 2000 rpm...

 

Richmond 4:10's are great, will definitely give you that kick your looking for. If thats too much 3:73's are another great choice. You cant go wrong with either one.

 

There generally is no wt. savings between manufacturers gear sets ... the ring and pinion wt. is what it is for a particular ratio ... okay there might be a few grams difference, but nothing like a pound or two.

 

I have two sets of Ford 3.55 gears for sale...... one set came from my '06 GT and the other from my '04 Mach 1. $50 plus shipping if you're interested.

 

hi tom218, i'll take the set from your '06 GT for $50!!

pm me information and we can do this deal...

thanks!

 

ok great..thanks for the info..

then probably staying ford is safe

 

I have a set too! I'll sell mine for the same price as Tom.

 

PM sent...... thanks.

 

do they make them ?

 

3.90's... I've seen, I think on Lethalperformance, a set made by Motive

 

http://www.lethalperformance.com/pag...390-ratio.html

 

i think is is about 2100 rpm. 50 bucks for a low mileage set is not bad. i liked using a new set because when you use a used set it should go back with the same backlash & rolling torque that it was set at originally. when you go new you just have to have it in spec. no matter what you do make sure that you get a new install kit.

 

hi TX2005gt,

are you saying its risky to installed previously used 3.55 gear set?

thanks!

 

That doesn't make sense saying that it "should go back with the same backlash & rolling torque that it was set at originally" and that going new "you just have to have it in spec". As long as they're installed, either used or new, at the correct specifications then you'll be good to go. It almost sounds like you're implying that Ford would have different install specs for either used or new gears- which they don't.

The 4.10s that I have in my '06 GT now I bought used from a guy here last year, and the local mom & pop install shop that does all my gear installs put them in within a couple of hours and had no problems- and the car was (is) new enough that I didn't buy the $100 install kit- they just used a new crush sleeve and synthetic lube. My parts total was less than $50 if I remember right.