Rear End Gears

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Looking to get my T56 swapped in shortly, and decided then would be a good time to change the out the rear-end gears from 2:73's. At first i wanted to go all out to 4:10's but i actually want to use first gear
So what are you guys running?

[Boost Addict]

4.11s. It's not like a T56 has that steep of a 1st gear so they work well with a taller gear out back.

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What RPM do you cruise at 70? 55?

[Boost Addict]

315/35/17s out back, I'm a hair over 2000 at 75. You can cruise in 5th at 55.

[QuickTop]

Really? Right now with my 2.73s 275/40/18's at 75 im at like 1850-1900

[Boost Addict]

Compare 6th gear of a T56 to 4th of a 60e. .5 vs .69. Overdrive in the 60e is pretty close to 5th in the T56.

[QuickTop]

So really 4:10's wouldnt be bad for a daily driver?
first probably ends at around 10mph?
Do you have a stock flywheel or lightweight?

[Boost Addict]

Theres really no reason to go anything less than 4.11s on a 6 speed unless you have a turbo. I WAS using an aluminum flywheel.

[QuickTop]

does the 0.01 make that big of a difference?
at with the aluminum flywheel first wasnt horrible?

[Boost Addict]

No it was butter with the Spec 2+ I had. It wasn't as fun with a Spec stage 3 though. And yes the .01 does make a difference. It turns the gearset into a hunting gearset, and they wear better.

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Rear End Gears

Where can I find nice 4:11s? I've only seen 4:10s but then again I haven't looked very hard. And I'll have a centerforce dual friction with aluminum fly wheel.

[1BADAIR]

do they make 4.11 for a 10 bolt? diff rears get diff gears. also what year is your t56

[Fox Slaughter]

http://www.f-body.org/gears/

1st gear with a 4.10 at 5700rpm is 40mph.

6th gear with a 4.10 at 70mph is 1900rpm.

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Rear End Gears

I'm not sure what year it is. I have the green tag from it.

[hoogiesngrinderz]

do they make 4.11 for a 10 bolt? diff rears get diff gears. also what year is your t56

Good question. They might, depending on who makes it. I think Yukon has a thick gear 4.11...

I know that the 3.42 from my 2000 Jimmy is NOT the same gear as the 3.42 from a 97 Camaro 42-13 vs 41-12