CRG Discussion Forum

Camaro Research Group Discussion => Originality => Topic started by: 68 Ragtop on November 28, 2013, 02:36:12 AM

Title: 1969 Camaro Z/28 Original Transmission and Axle ratio combination
Post by: 68 Ragtop on November 28, 2013, 02:36:12 AM
If you have or had an original 1969 Z/28 and know the transmission type and axle ratio please answer.

The 3.73:1 rear axle was the ratio you got unless something else was checked on the order form.
The other axle options were economy, performance, and special where you specified in the ratio.
Title: Re: 1969 Camaro Z/28 Original Transmission and Axle ratio combination
Post by: DavidS on November 28, 2013, 04:01:35 AM
BE or BV or QY is 4.10 ratio.

I voted "4.11 rear" since it's the closest one, and I have a BV code with a M21.


Title: Re: 1969 Camaro Z/28 Original Transmission and Axle ratio combination
Post by: ZLP955 on November 28, 2013, 07:44:46 AM
Not interested in open or posi rear?
Title: Re: 1969 Camaro Z/28 Original Transmission and Axle ratio combination
Post by: 68 Ragtop on November 28, 2013, 08:39:01 PM
BE or BV or QY is 4.10 ratio.

I voted "4.11 rear" since it's the closest one, and I have a BV code with a M21.


Not quite sure what you mean. 4.11 is not an option from the factory or in the poll.
Title: Re: 1969 Camaro Z/28 Original Transmission and Axle ratio combination
Post by: 68 Ragtop on November 28, 2013, 08:50:52 PM
Not interested in open or posi rear?
Not for this purpose. I suspect the percentage of posi units is high due to Chevy recommending it with the 3.73 and requiring it with the 4.10 and above.
Title: Re: 1969 Camaro Z/28 Original Transmission and Axle ratio combination
Post by: DavidS on November 29, 2013, 03:51:40 AM
BE or BV or QY is 4.10 ratio.

I voted "4.11 rear" since it's the closest one, and I have a BV code with a M21.




Not quite sure what you mean. 4.11 is not an option from the factory or in the poll.

Thanks for fixing it.  Google's cache shows it before the fix: http://webcache.googleusercontent.com/search?q=cache%3Ahttp%3A%2F%2Fwww.camaros.org%2Fforum%2Findex.php%3Ftopic%3D11532.0&rlz=1C1BLWB_enUS541US562&oq=cache%3Ahttp%3A%2F%2Fwww.camaros.org%2Fforum%2Findex.php%3Ftopic%3D11532.0&aqs=chrome..69i57j69i58.6788j0j4&sourceid=chrome&espv=210&es_sm=93&ie=UTF-8 (http://webcache.googleusercontent.com/search?q=cache%3Ahttp%3A%2F%2Fwww.camaros.org%2Fforum%2Findex.php%3Ftopic%3D11532.0&rlz=1C1BLWB_enUS541US562&oq=cache%3Ahttp%3A%2F%2Fwww.camaros.org%2Fforum%2Findex.php%3Ftopic%3D11532.0&aqs=chrome..69i57j69i58.6788j0j4&sourceid=chrome&espv=210&es_sm=93&ie=UTF-8)

Title: Re: 1969 Camaro Z/28 Original Transmission and Axle ratio combination
Post by: ZLP955 on November 29, 2013, 07:03:23 AM
BE or BV or QY is 4.10 ratio.

I voted "4.11 rear" since it's the closest one, and I have a BV code with a M21.




Not quite sure what you mean. 4.11 is not an option from the factory or in the poll.

Thanks for fixing it.  Google's cache shows it before the fix: http://webcache.googleusercontent.com/search?q=cache%3Ahttp%3A%2F%2Fwww.camaros.org%2Fforum%2Findex.php%3Ftopic%3D11532.0&rlz=1C1BLWB_enUS541US562&oq=cache%3Ahttp%3A%2F%2Fwww.camaros.org%2Fforum%2Findex.php%3Ftopic%3D11532.0&aqs=chrome..69i57j69i58.6788j0j4&sourceid=chrome&espv=210&es_sm=93&ie=UTF-8 (http://webcache.googleusercontent.com/search?q=cache%3Ahttp%3A%2F%2Fwww.camaros.org%2Fforum%2Findex.php%3Ftopic%3D11532.0&rlz=1C1BLWB_enUS541US562&oq=cache%3Ahttp%3A%2F%2Fwww.camaros.org%2Fforum%2Findex.php%3Ftopic%3D11532.0&aqs=chrome..69i57j69i58.6788j0j4&sourceid=chrome&espv=210&es_sm=93&ie=UTF-8)


So who fixed it, if not the OP ???
Title: Re: 1969 Camaro Z/28 Original Transmission and Axle ratio combination
Post by: KurtS on November 29, 2013, 03:31:32 PM
I fixed it. Sorry for the confusion.
Title: Re: 1969 Camaro Z/28 Original Transmission and Axle ratio combination
Post by: 68 Ragtop on November 29, 2013, 07:09:31 PM
Thanks Kurt. I forget sometimes there is a small difference between 10 and 12 bolt ratios like 3.08/3.07 and 4.11/4.10.

BTW if you have a special ratio feel free to post it. The poll would get way to complicated if I tried to include all possibilities.