Gears for auto LT1?
i had 3.73s in my car when it was auto its prolly the best you can do if you dont want gas mileage to go down the ******* that and 3rd gear tops out right at 100 mph or at least mine did
Trending Topics
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo
4.10's are fine in an auto for highway MPG. As stated, it matters how you drive it. Some people think 4.10's kill the 10 bolt, and give terrible gas mileage, but it just depends on how you drive it.
I don't care about top speed, honestly.
I don't care about top speed, honestly.
I would also recommend 3.42 or 3.73 gears. If your car isn't going to see the strip much, you'll probably be better off with 3.42's due to how well mannered they are. 3.73's will see better gains in the 1/4, but will hurt gas mileage a little more than 3.42's. I wouldn't recommend 4.10's unless you plan on turning it into an allout drag car.
Originally Posted by urbanhunter44
I had 4.10s in my '94 T/A, automatic. Spun 2500 at 65mph. Didn't really affect gas mileage. I'd get them again.
TECH Resident
Joined: Feb 2006
Posts: 934
Likes: 0
From: Panama City Florida
Get the 3.73's! I've got 3.73's on my 95 a4 TA. I was contemplating getting 3.42's and am much happier that I got the 3.73's. My gas mileage actually improved about 1 to 2 mpg over the 2.73's it had in it. Most of my driving is city and occasional highway. If I would have went 3.42's I think I would not have been as happy about the change.
Originally Posted by infinitebird
As said, depends on your driving habits. If you never go higher than 65, they are not that bad. On the other hand if you go 85, it will be turning around 3200 and gas mileage will be a lot worse.
Plus LT1s get much better gas mileage at 65 than they do at 85 no matter what your gearing is. I'm actually really enjoying the 3.42s in my M6, nice to cruise at 65 at 1600 RPM. But the 4.10s will come very shortly - if I don't go with a shorter gear that is.
