I make the right choice?
Thread Starter
2nd Gear Member
Joined: Apr 2007
Posts: 248
From:
I make the right choice?
I just order 4.10 gear for my automatic . Then i start thinking that 3.73 is closer to a manuel with 4.10s will 4.10 shorten my tranmission life?
With 4.10 do i really have anything to worry about? Or should i call the place and tell them to send me 3.73 instead >> I prolly never going to go FI
i do plan on spraying sometime in the furture.
With 4.10 do i really have anything to worry about? Or should i call the place and tell them to send me 3.73 instead >> I prolly never going to go FI
i do plan on spraying sometime in the furture.
2nd Gear Member
Joined: Nov 2008
Posts: 171
From: Va
You will have more engine wear on the highway and lower gas mileage. 4.10 will increase your RPM by 20% over stock and 3.73 by about 12% over stock. It might be a little easier on your engine in the city with the numerically higher gears, though. That's not the case on the highway.
More RPM = more engine wear. It would probably take years and years to make a difference, so most people aren't worried about it.
If it's taken to the track a lot, then I'd get 4.10. Otherwise, for a street car 3.73 is plenty. If you really can't make up your mind, then I suppose there is always 3.90:1.
More RPM = more engine wear. It would probably take years and years to make a difference, so most people aren't worried about it.
If it's taken to the track a lot, then I'd get 4.10. Otherwise, for a street car 3.73 is plenty. If you really can't make up your mind, then I suppose there is always 3.90:1.
Last edited by mustangtestuser; Nov 16, 2008 at 10:27 PM.
6th Gear Member
Joined: Sep 2006
Posts: 11,005
From: Canton, Georgia
I have a friend that does alot of interstate driving each day. He has an automatic & installed 4.10's and said it was way to much, had some issues with the gear set-up and had to get new ones, went with 3.73's and says they are much better for him.
I will be doing 4.10's in my car, but mine is more of a weekend toy.
I will be doing 4.10's in my car, but mine is more of a weekend toy.
Last edited by 05 Mustang; Nov 17, 2008 at 08:32 AM.
Thread Starter
2nd Gear Member
Joined: Apr 2007
Posts: 248
From:
OK i never really take the car on the highway
and if it do at the max it is 30 miles @70MPH and that very rare
i do plan a road trip this summer but it going to be like 1 in a year so i think 4.10s will be fine
and if it do at the max it is 30 miles @70MPH and that very rare
i do plan a road trip this summer but it going to be like 1 in a year so i think 4.10s will be fine
s197 Junkie
Joined: Sep 2006
Posts: 16,088
From: IN
I wouldnt say its a bad choice, it might be a bit much on the highway though, you will be over 3K going 80 mph with the auto trans
Here is a link with some calculations and you can see that the 3.73 in the auto is about like the 4.10s for the manual
https://mustangforums.com/forum/show...49&postcount=4
Here is a link with some calculations and you can see that the 3.73 in the auto is about like the 4.10s for the manual
https://mustangforums.com/forum/show...49&postcount=4
