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V8 and V6 Transmissions / Driveline (6L80 / 6L50 / TR6060 / AY6) Driveshafts | Differentials | Gears | Rearends | Clutch | Shifters

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Old 08-05-2010, 06:07 PM   #1
73duster
 
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Any 1/4 mile times with l99 3.73 gear swap only?

I'm curious to see what the difference is with just swapping the gears to a 3.73 on an l99 automatic. I'm thinking of doing a full exhaust(longtubes, high flow cats and cat back), tune and swap to 3.73 gears on an l99. I'm thinking it would be a major difference in 1/4 mile times. Later down the road i'll add a mild cam thats streetable and maintains bottom end torque. If i could run mid 12's all day i'd be ecstatic. What do you guys think?
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Old 08-05-2010, 06:10 PM   #2
Supercharged SS
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You'll be able to run mid 12's without the 3.73's. Just do the cai, lt's and a tune and you'll be there.
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Old 08-05-2010, 07:32 PM   #3
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Quote:
Originally Posted by 73duster View Post
I'm curious to see what the difference is with just swapping the gears to a 3.73 on an l99 automatic. I'm thinking of doing a full exhaust(longtubes, high flow cats and cat back), tune and swap to 3.73 gears on an l99. I'm thinking it would be a major difference in 1/4 mile times. Later down the road i'll add a mild cam thats streetable and maintains bottom end torque. If i could run mid 12's all day i'd be ecstatic. What do you guys think?
I don't have any 1/4 miles comparison numbers for just the gear swap, but will the set up you are describing mid 12s will be no problem at all. If you don't already have an air intake you should definitely add one to the shopping list.
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Old 08-05-2010, 07:36 PM   #4
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If you get a good DA you could possibly even see a 12.2.
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