4:10 gear ratio
Thread Starter
Melting Slicks
Joined: Dec 2004
Posts: 2,687
Likes: 1
From: Manteca CA
4:10 gear ratio
I have a LT-4 and am thinking of going to 4:10 final drive. I would like to hear from forum members who have made this swap. Is it a worthwhile change? Does anybody have a estimate of what the total cost would be to have a shop do the work, and recalibrate the spedo?
The car is not a daily driver, and is mostly driven on the Cal coast.
The car is not a daily driver, and is mostly driven on the Cal coast.
Le Mans Master
Joined: May 1999
Posts: 6,517
Likes: 1,304
From: Windermere FL
I agree that gear were my favorite mod.
Mine barely gets 20 MPG - I don't understand how you can get 28 mpg with 4.10. And I believe that my 3.73 go 1800 or so at like 50 mph. I guess that 6 speed really saves the rpms.
Originally Posted by STL94LT1
The car still gets 28 mpg, and is only turning 1800 rpms at 70 mph.
Safety Car
Joined: Sep 2003
Posts: 3,692
Likes: 5
From: Hayward CA
I got 25.5mpg on a recent 800+ mile drive to Medford, OR and back... with the 4.10's (doing 80-90mph to entire way). I was really impressed that the gas mileage didn't suffer. Around town driving I usually get between 16-17mpg.
Race Director
Joined: Apr 2000
Posts: 15,344
Likes: 4,009
From: Texas
At my last outing (see sig pic) I got 6.5mpg 
4.10s are a lot of fun, especially on the street. On a road course they can be a bit too tall even with my 6800rpm fuel cutoff.
For your intended usage, I'd say "go for it"! I've had mine for nearly 5 years.
4.10s are a lot of fun, especially on the street. On a road course they can be a bit too tall even with my 6800rpm fuel cutoff.
For your intended usage, I'd say "go for it"! I've had mine for nearly 5 years.
Race Director
Joined: Jan 2002
Posts: 12,263
Likes: 86
From: O'Fallon Missouri
Originally Posted by Flame Red
Mine barely gets 20 MPG - I don't understand how you can get 28 mpg with 4.10. And I believe that my 3.73 go 1800 or so at like 50 mph. I guess that 6 speed really saves the rpms.
Safety Car
Joined: Jul 2001
Posts: 4,871
Likes: 15
From: Detroit's West Side MI
You can have mine.
They're fun on the street but not good on the track. 2nd's too low for any corner, I run out of 3rd at just about every short straight, and hitting 4th only makes sense on the longer straights. It's on my list of things to change (probably down to a 3:47), but you're asking about you, not me
For cruising the coast you'll probably like them just fine. Even though it really isn't, the car will feel faster "seat of the pants."
The shop near me, DTS (they're pretty well known, at least east of the Mississippi), charges about $800-1000 parts and labor, depending on what parts you choose.
They're fun on the street but not good on the track. 2nd's too low for any corner, I run out of 3rd at just about every short straight, and hitting 4th only makes sense on the longer straights. It's on my list of things to change (probably down to a 3:47), but you're asking about you, not me
For cruising the coast you'll probably like them just fine. Even though it really isn't, the car will feel faster "seat of the pants."
The shop near me, DTS (they're pretty well known, at least east of the Mississippi), charges about $800-1000 parts and labor, depending on what parts you choose.
