3:73 rear
Thread Starter
Drifting
Joined: Oct 2004
Posts: 1,976
Likes: 0
From: Patchogue NY
3:73 rear
Going from 3:45 to 3:73 rear, is there a significant loss of top end performance? Trying to decide if putting in 3:73 gears is the way to go to complement my other mods.
Joe B.
Joe B.
Team Owner
Joined: Dec 2007
Posts: 20,974
Likes: 261
I heard always go with 4.11 on a 6 speed, that seems to match well, I would not waste time or money on moving that little bit.
do a search many people they should have come with 4.11's
IMO it is what I would do first if I had a 6 speed
do a search many people they should have come with 4.11's
IMO it is what I would do first if I had a 6 speed
Melting Slicks
Joined: Mar 2008
Posts: 3,022
Likes: 3
From: Chandler Arizona
The 3.73's are the gears of choice over at the ford camp (when i had a mustang). It seemed to be a good compromised between what the car came with and going "too" short (i.e. 4.11's). The 4.11's almost seem "too short" when you're making ridiculous power (more than 500-550rwhp). This is why the ford guys like 3.73's in the mustang, get's the car going but wont blow the tires off
Although, these cars are definitely geared differently and that 6th gear certainly helps.
A lot of people are concerned about the "top-end", tell me, how often do you plan on going past 160mph? If not often than you won't miss the slight difference on the top-end if you go with 3.73's or (4.11's).....
3.90's also seem to be a common swap for c4's.
Although, these cars are definitely geared differently and that 6th gear certainly helps.
A lot of people are concerned about the "top-end", tell me, how often do you plan on going past 160mph? If not often than you won't miss the slight difference on the top-end if you go with 3.73's or (4.11's).....
3.90's also seem to be a common swap for c4's.
Melting Slicks
Joined: Jan 2008
Posts: 2,054
Likes: 120
From: AZ
Now I wish I had gone to at least 3.36; maybe 3.07.
My rear end guy said the lower ratios have more contact area for the teeth, which helps them handle the power AND last longer. I opted for cryo treatment in addition to the gear set he chose for more contact area (sorry, don't have the manf).
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Le Mans Master
Joined: Jun 2009
Posts: 5,060
Likes: 1
From: Tabernacle NJ
St. Jude Donor '10-'11-'12-'13
Is goin from 2.59 to 3.73 with auto trans too big of a jump?What rpms can I expect in overdrive?Are 3.54 a better choice all stock 93 vert.thanks
Last edited by ks5shooter; Sep 12, 2009 at 06:04 PM.
Burning Brakes
Joined: Dec 2006
Posts: 1,090
Likes: 80
From: Burleson Texas
Might not enjoy the 4:11 on the street - mid 3's are a good match for the 6 speed unless you are building a track car.
Safety Car
Joined: Nov 2004
Posts: 4,991
Likes: 5
From: The Pines South Jersey
shot me a pm an we can hook up one of these days
Le Mans Master
Joined: Aug 2000
Posts: 8,838
Likes: 31
From: Australia
Thread Starter
Drifting
Joined: Oct 2004
Posts: 1,976
Likes: 0
From: Patchogue NY
Thiis is a lot to digest, folks; thanks for all the feed back. I was offered a swap to 4:10 a while back by a very reputable forum member.
He also gave me some advise about the swap. He said the Lt4 would be a beast if you add the 4:10 gears. If I go with 4:10 gears I will hold on to my 3:45 so as to be able to go back to stock. Now, to find someone who wants to get rid of 4:10's.
Again, thanks so much for the help, folks!
Joe B.
He also gave me some advise about the swap. He said the Lt4 would be a beast if you add the 4:10 gears. If I go with 4:10 gears I will hold on to my 3:45 so as to be able to go back to stock. Now, to find someone who wants to get rid of 4:10's.
Again, thanks so much for the help, folks!
Joe B.
Burning Brakes
Joined: Aug 2009
Posts: 816
Likes: 0
From: Virginia Beach Virginia
I was just recently talking with a Camaro owner that said he went from aa 3:42 to a 3:73 and stated there was not much of a difference, and wishes he went with a 4:11...... I would go with the 4:11 myself.
Racer
Joined: Feb 2003
Posts: 440
Likes: 6
From: aumsville oregon
I had 4.10's in my car it was great for a somewhat stock motor with headers up until you put some horsepower in the car then I was having to shift to 5th gear to finish the 1/4 mile and that killed my time. I have 3.73 now and love it but also have lots of power now.
Melting Slicks
Joined: May 2004
Posts: 2,856
Likes: 187
From: Earth
I just went to 3.73s from my 3.33's and I can even tell on the city streets as well as highway the difference. I'm glad I didn't go 4.11s as I'm blowing the tires off now in 2nd at about 40mph. I do have a 6spd
Safety Car
Joined: Sep 2000
Posts: 3,524
Likes: 4
From: Hinckley Ohio
Safety Car
Joined: May 2002
Posts: 4,659
Likes: 82
From: Toronto ontario
Our cars are 5 speeds with a fuel economy 6th. 3.45s are a compromise for best all around gear. 3.73s are the best in my opinion. I had 4.10s. hated it. I have 3.75s now but wish I stayed 4.10s only because my motor went 8k. It was risky enough doing datalog runs in 4th gear to 8k with a 26.2 rear tire 10x a night and 5 more for fun 
5th was only good for me for top speed runs and with a peak torque at 5800 rpms 6th was absolutely useless unless I planned on cruising at 180 mph.
are you l98 or lt1?
5th was only good for me for top speed runs and with a peak torque at 5800 rpms 6th was absolutely useless unless I planned on cruising at 180 mph.are you l98 or lt1?
Last edited by 5abivt; Sep 29, 2009 at 11:05 AM.