3.31's to 3.73's

slammed89swb · Sep 21, 2007

I have a friend that works at a Ford dealer and just happens to have a set of 3.73's, That is he is going to install in my car for a hundred bucks out the door!!! I couldnt say no!! My car is a 07 5speed. How do these car run with a better gear? I know 4.10's would be the better choice, but its such a good deal for the 3.73's. Also what rpm will i be turnin at 70? Also can dealers correct my speedo with out a programmer? Or is this something i will have to fix with an aftermarket tuner?

Jim86 · Sep 21, 2007

If it's a 5-speed you should already have 3.55's.

kooldawg6 · Sep 22, 2007

The dealer needs to reprogram your computer/speedo for the gear swap. @ 70 in OD(auto), I run about 2500 RPM with 4.10s. That should put the manual just a bit over 2000 with the 3.73s I'm guessing. Awesome deal, but I think I'd still pay the full amount for the 4.10s

ARTTII · Sep 22, 2007

Jim86 said:
If it's a 5-speed you should already have 3.55's.

He mentioned he had an '07, so 3.31 was the stock gear. Only way he has 3.55's is if he had the $100 option for 3.55s (which went up to $300 for '08!)

Hoodlum · Sep 22, 2007

slammed89swb said:
How do these car run with a better gear? QUOTE]

They run like they should. I did the same thing and she feels like a GT now instead of having the pickup of my v6.

slammed89swb · Sep 22, 2007

Its still my wifes daily driver and will be for at least 4 or 5 more years, so we will still be takin it over the road once in a while i just figured for the money.... and for what we are going to do with it, i think it will be a good medium. I have to go ahead and buy her an axle back with all the money i saved on the gear install. I was thinkin about MAC, I had some on my 94GT and loved the sound. How do they sound on these newer cars?

PUNISHER RACING · Sep 23, 2007

I had the 3.73's and didn't really notice that much of a difference still got 25 mpg though, they are currently being pulled and the rear suspension done in favor of 4.30's.

Hoodlum · Sep 23, 2007

slammed89swb said:
Its still my wifes daily driver and will be for at least 4 or 5 more years, so we will still be takin it over the road once in a while i just figured for the money.... and for what we are going to do with it, i think it will be a good medium. I have to go ahead and buy her an axle back with all the money i saved on the gear install. I was thinkin about MAC, I had some on my 94GT and loved the sound. How do they sound on these newer cars?

MAC IMHO does not sound too good. SLP all the way. Borla would be a close second though.

3.31's to 3.73's

slammed89swb

New Member

Jim86

New Member

kooldawg6

mine works really well and can take a fair amount

ARTTII

New Member

Hoodlum

New Member

slammed89swb

New Member

PUNISHER RACING

Active Member

Hoodlum

New Member

Similar threads

3.31's to 3.73's

New Member

New Member

mine works really well and can take a fair amount

New Member

New Member

New Member

Active Member

New Member

Similar threads

Privacy & Transparency

Privacy & Transparency