What is the best....
So as a DD I would say it's not worth it, but for launching, it's good.
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I had 3.73s in my auto LT1, and definetly noticed a big difference. as far as how much you will feel it depends on whether you have a 2.73 or 3.23 stock rear-end if you an auto.
As far as the 4.10s go in my 6-speed. I love them. they feel great. definetly a big gain over the stock 3.42s.
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The difference in top speed is rather pointless in a 6spd car. At 6000 rpms with a 274/40/17" tire you will be going 223mph. Not many people on the planet ever drive a car that fast. BTW the difference in top speed isn't 10mph. FWIW the difference from 4:10s at 6000rpm and 3:73s is 22mph.
In a 10 bolt rear the 3:42s would be the strongest but also the slowest as far as acceleration is concerned.
Last edited by blue01ta; Nov 17, 2006 at 07:13 PM.
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in the auto with 3:73 i had, i didn't tell much gas mileage difference but sure did feel the performance difference. but i also had a stall.
today i installed 4:30 gears in my 99 6-speed...... hope i likes.........
Rpm limit , Tire height etc . You dont want to have to shift to 5th at the strip .
I have stock 3.42 currently and I drive 85 -100mph on the highway to/from work just so the engine isnt bogging in 6th . One benefit though is leaving 10 till .



