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3.73's......what the SS should've come with ;) !

KW
+1 I've driven vehicles with both, and while the 4.10s are fun, highway driving takes some getting used to (spintech exhaust+cruising at ~85mph +4.10s=headache). I think 3.73s are the best compromise.

Def look at an aftermarket Posi too. Eaton or the Detroit Tru-Trac are 2 good ones.
 

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+1 I've driven vehicles with both......
I have both.......in my two stroked B-bodies.........

The 9C1 with 3.73 gears is my daily driver ;) .

KW
 

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I've had the same question about 373 or 410. Do your opinions change if the car has a T56?

Jonathan
 

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Definitely changes with a T56. Most with stock motors recommend 4.56's for stock tire height. With a Stroker or a strong 350 you can get by with 4.10s. General concensus is that 3.73s are too tall off a gear for use with a t56.
 

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+1 to all above posts

Nothing less then 4.10 for t56
and 3.73s for automatic street car.

I get good gas mileage if i keep it under 80 with 3.73s

Im AT around 2600/2700 RPMs with 3.73s at 80mph.
 

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4.10's aren't as bad as you might think on the street- I ran them on my '95 for a couple years after driving a friend's Tahoe that was equipped with them- as long as you aren't cruising all day at 80- Every time you toe the throttle, you will smile-

See if you can drive someone's car with either set, before you decide- you might be surprised-
 

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I'd recommend 4.10's as long as you don't cruise over 80MPH often, above that they get annoying cause the RPMs are up over 3000.
 

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I'm not gonna lie, 456 just sounds like a lot of gear. I talked to a guy here at work who is all in to the F-body stuff and 410s is all they will go. Is it the extra 1000 lbs on the Impala that warrants the extra gear?

Jonathan
96 DGGM
 

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I'd recommend 4.10's as long as you don't cruise over 80MPH often...
+1

While I DON'T regret my 3.73s, I sort of wish I installed 4.10s instead...

But it spins 'em easy enough anyway!!!:D
 

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........456 just sounds like a lot of gear...........Is it the extra 1000 lbs on the Impala that warrants the extra gear.........M
Hell yes!

There is no comparing B-bodies to F-bodies when it comes to gear, TC stall and cam selections.

KW
 

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Definitely changes with a T56. Most with stock motors recommend 4.56's for stock tire height. With a Stroker or a strong 350 you can get by with 4.10s. General concensus is that 3.73s are too tall off a gear for use with a t56.
+1. I LOVED my 3.73's with the auto. Now with the T-56 the 3.73's feel like stock gears again.
 

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+1. I LOVED my 3.73's with the auto. Now with the T-56 the 3.73's feel like stock gears again.
Thanks for that. Good to hear from someone who has been right where I will be. Gears on the stock motor (or MILDLY modified with external bolt ons) and trans while I work my way forward. Do you think you'll go to the 4.10 or make the leap to 4.56?
 

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i hear 3.42's do the same as 3.73's but use less gas

and if you rolling 22's or bigger 4.10's is the way to go

but i have 3.73's ;)

but i think ima go with 3.42'son my next bbody *95 DGGM*<--- thats what i want :(
 

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I miss my 4.10's in my 4L60E car.

I miss my 4.56's in my T56 car.
 
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