Gears??

[MUSTANGJOE]

Hey guys..

me again!!, I'm installing 3.73's. My quesition is when the shop drove my car they said that My shifts are already short and that I probably already have 3.73's. We check and they are stock 3.08. Now This is my first 5-speed stang, are the shifts short stock?..meaning it hits 4-5000 rpm's quickly. And would putting 3.73's be to much?

 

[tunedin302]

Really depends what you want. If you want to get up to speed faster then go with the 3:73s. If you want highway miles, stay with the 3:08s. People run 3:73 and 4:10 gears all the time with the stock trans. I run a 3:35 first gear with a 3:55 rear and have no problems. I think your shop is on crack.

 

[N8Miller]

i think that your shop is on crack also.

if you want the best all around gear, do 3.73s. some are gonna argue that, but others will agree. like tunedin said, its about what YOU want for your car.

 

[slow93]

im running 4.10s with a five speed and first gear is almost useless. the 3.73s i think would be a good all around gear.IMO

 

[MrKwik]

im running 4.10s with a five speed and first gear is almost useless. the 3.73s i think would be a good all around gear.IMO

I'm also running 4:10's in one of my five speed cars. I'm shifting into third by the time I get across an intersection. I don't mind because its not a daily driver but I had one other 5 speed car with 4:10's before that was a driver and it still didnt bother my too much. Different poeple have different tolerance levels of what they will put up with for the sake of performance though. I think most poeple will say the 3.55 is the best "all around" gear for a 5-speed car but I am a big fan of deep gears so I wouldnt hesitate to run the 3.73. Now if the car is primarily a highway rig I might stick with the 3.55.

 

[notchback]

all you need to do is raise the @ss and count to what you have for sure.

3.73's is not too much

i like 4.10's

performance + 40 mpg does not exist, so decide what you want

 

[cobradvm]

Went from 3.08s to 3.73s in a 331 stroker- debated about 3.55s for a while - was sure I was going to do these, but ended up going with 3.73s and am real glad - car really wakes up, and is alot more fun to drive.

 

[Henceforward]

I have 3.08s right now, but when I do gears I will install 3.73 FMS...

3.73s are the way to go, so I hear...

 

[MUSTANGJOE]

well there installing it now!..I did have stock gears. Did yours come with both bearings?..mine came with lots of bushings and 1 thing that looks like a nut! , Can I order a stock replacement bearing for these 3.73's?

 

[txgunrunner]

my buddies say the 373 is a good all round gear and i want to put one in but my car feels like it already has a bigger gears from stock. are the gears stamped or do you have to count the teeth to verify which gear i'm running. thanks

 

[cobradvm]

The pinion will have the ratio stamped on the end - if you want to be 100% sure, count the teeth.

 

[90mustangGT]

Like said before, jack up the rear end and with the trans in neutral, turn the driveshaft and count how many total turns for one turn of the wheel. I too belive that shop is on crack, they should have been able to do this, they could have/lost a sale.

3.73's seem to be the ideal gear for a around town cruiser daily driver. I agree 4.10's are steep, but if you go to the track and have traction (both) they will dig you out of that hole. Some say to go 3.55's, but the truth is that they are no 3.73's and the engine revves only a few hundred rpm's lower on the highway. Once 5th is in, the rpm's between the gears is similar. Also, consider the size tire you are running, a 26" range tire is what were refering to but if your running a 28" tall tire, you might want to go a step up, and a 30" two steps.

With 3.73's and a 25.7" tall tire (275/40R17) I was shifting at 35mph, 65mph, 83mph, and about 115 is where it would top out 4th.

 

[squeeeg]

I have 3.73's and 5 speed and it doesn't rev out to much. 1st gear is kindof short but you get used to that