3.73's or 4.10's
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Supreme Member

Joined: Nov 2006
Posts: 1,724
Likes: 1
From: NY sucks
Car: 84' Corvette, 96' Caprice
Engine: LT1, L99
Transmission: T-56, 4L60e
Axle/Gears: 3.07 POSI, 2.93 Open
3.73's or 4.10's
I am looking to upgrade my gears in the rear. I am currently running 3.23's and the car doesn't pick up until 3000-3500 rpm's(and it really picks up then). So i was looking into 4.10's until i started reading that ppl with 10 bolts breaking the 4.10's... and i am now looking into 3.73's. The car barely sees highway use and i just cruise around a lot around 50-60 mph which in 6th gear is pretty low(it doesn't like anything under 50 mph in 6th, no power) What do you think is a good gear for the car? The powerband is roughly about 3500-6500. Thanks a lot.
Thread Starter
Supreme Member

Joined: Nov 2006
Posts: 1,724
Likes: 1
From: NY sucks
Car: 84' Corvette, 96' Caprice
Engine: LT1, L99
Transmission: T-56, 4L60e
Axle/Gears: 3.07 POSI, 2.93 Open
Supreme Member
iTrader: (1)
Joined: Feb 2000
Posts: 7,964
Likes: 4
From: Norfolk, VA. USA
Car: 86 Trans Am, 88 Formula
Engine: 95LT4, 305TPI
Transmission: T56, T5
Re: 3.73's or 4.10's
I had 4.10's in 3 cars and they are great for a 6 speed.
they were fun in my 5 speed Formula but gas mileage sucked due to no extra over drive gear.
they were fun in my 5 speed Formula but gas mileage sucked due to no extra over drive gear.
Thread Starter
Supreme Member

Joined: Nov 2006
Posts: 1,724
Likes: 1
From: NY sucks
Car: 84' Corvette, 96' Caprice
Engine: LT1, L99
Transmission: T-56, 4L60e
Axle/Gears: 3.07 POSI, 2.93 Open
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