411 posi rear - Team Camaro Tech
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post #1 of 17 (permalink) Old Apr 4th, 01, 04:32 PM Thread Starter
 
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Does anyone know if 411 posi rear is original on a 69 camaro?
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post #2 of 17 (permalink) Old Apr 4th, 01, 04:36 PM
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Yes, it was an option.

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'69 RS/SS396 pro street
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post #3 of 17 (permalink) Old Apr 4th, 01, 04:47 PM Thread Starter
 
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I found a 69 camaro the guy said it has the original engine 396/375hp with 411 posi rear. Needs paint and interior work he is asking $5000 is this a good deal?
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post #4 of 17 (permalink) Old Apr 4th, 01, 05:11 PM
 
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Well maybe.However a 375 hp big block wouldn't really need 411 gears.Something around 342's would be better.Someone will correct me if I'm wrong I'm sure. 373/410/411 were good for small block cars z/28's.The tourqe of a big block didn't need that much gear because they didn't wind up that tight.

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post #5 of 17 (permalink) Old Apr 4th, 01, 05:15 PM
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In stock form a 375hp will run to 7000 very easily.

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post #6 of 17 (permalink) Old Apr 5th, 01, 04:48 AM
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Sorry to piggyback, but what is the difference between 4:11 and 4:10? I heard that 4:10 was a 12 bolt rear and a 4:11 was a 10 bolt. But weren't all SS cars (396/375 HP cars) come with a 12 bolt? This would indicate the car being discusssed in this thread would have to be a 4:10.

The guy I bought my Z from indicated it was a 4:11 but it had a 12 bolt rear so I have been calling it a 4:10

R. Stacho (a.k.a. Mytmouse)

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post #7 of 17 (permalink) Old Apr 5th, 01, 05:15 AM
 
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I have 8.5" 10 bolt in my 56. It came off a drag car. Anyway, it's a 1971 10 bolt and it has 4.10. I counted the teeth/gears myself.--but then, I don't know about the 8.2" 10-bolts.
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post #8 of 17 (permalink) Old Apr 5th, 01, 06:08 AM
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Difference is dependent upon manufacturer of gear set.

4.10 = pinion 10, ring 41 teeth
4.11 = pinion 9, ring 37

The bigger the pinion, the longer the level.

Everett 68/350/PG/11.90/115mph
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post #9 of 17 (permalink) Old Apr 5th, 01, 06:24 AM
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Everett & Others

Thanks for clearing that up for me

Robert Stacho (a.k.a. Mytmouse)

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post #10 of 17 (permalink) Old Apr 5th, 01, 07:29 AM
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411 is not too low for that motor. the all aluminum 427/430hp copo camaros were offered with only 410 or 456 rear ends. chevrolet would not have done this if they were too low.
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post #11 of 17 (permalink) Old Apr 5th, 01, 09:31 AM
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I want that car! Can I have it? Do you live near me?
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post #12 of 17 (permalink) Old Apr 5th, 01, 09:53 AM
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Can you put 3.73, posi gears in a chicken-leggin', 8.2", 2.73, 10 bolt?

(The car is a 69 Camaro. Orig had a 6 cyl - hence the 2.73, 10 bolt.)
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post #13 of 17 (permalink) Old Apr 5th, 01, 04:03 PM
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RFrenette,
Yes you can put 3.73s and a posi in a 8.2. Torq-Line makes a posi unit for it and several manifacturers make the gears.

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'69 RS/SS396 pro street
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post #14 of 17 (permalink) Old Apr 5th, 01, 04:36 PM Thread Starter
 
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Well I talked to the guy again he checked the cowl tag and its a X44 car so it cant be original big block camaro. So I decided not to buy it.
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post #15 of 17 (permalink) Old Apr 5th, 01, 04:48 PM
 
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You should always check the VIN against the cowl tag. Alot of camaros had a v8 cowl tag (12437) and a straigt 6 on the vin. If it has a 12337 on the vin, its a 6.

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