CRG Discussion Forum

Camaro Research Group Discussion => Decoding/Numbers => Topic started by: uscgreel on January 26, 2016, 01:26:40 AM

Title: 12 Bolt Rear End Identify
Post by: uscgreel on January 26, 2016, 01:26:40 AM

I am showing a BT0603G2 pretty clearly, but on my window sticker it shows the car as having 4.10 gears. And BT is showing 3.55. What is it?

Title: Re: 12 Bolt Rear End Identify
Post by: cook_dw on January 26, 2016, 01:48:19 AM

Are you sure your window sticker is original?  What is the build date of the car? 

Title: Re: 12 Bolt Rear End Identify
Post by: Mike S on January 26, 2016, 02:24:30 AM

 I'm with Darrell about the validity of the window sticker. The factory was accurate in regards to the stamping of the rear code.
In addition to the date of the car, what model car too?

Mike

Title: Re: 12 Bolt Rear End Identify
Post by: BULLITT65 on January 26, 2016, 03:21:08 AM

Could the rear have been swapped out?

Title: Re: 12 Bolt Rear End Identify
Post by: bcmiller on January 26, 2016, 07:32:24 AM

All good questions.

We need more info about your car - year, build month and week, model.

Post a pic of the window sticker if you want opinions on that.

Title: Re: 12 Bolt Rear End Identify
Post by: uscgreel on January 26, 2016, 10:45:39 AM

Alright, thanks for the replies. I will work on getting some pictures of the window sticker.

Title: Re: 12 Bolt Rear End Identify
Post by: firstgenaddict on January 28, 2016, 04:04:27 AM

Yes on the window sticker the ECL codes were different depending on the rear end and cooling options...

Title: Re: 12 Bolt Rear End Identify
Post by: uscgreel on January 30, 2016, 01:46:42 AM

Here is the window sticker I have...

Title: Re: 12 Bolt Rear End Identify
Post by: uscgreel on January 30, 2016, 01:49:04 AM

Sorry, I don't know why it is sideways.

Title: Re: 12 Bolt Rear End Identify
Post by: ko-lek-tor on January 30, 2016, 04:12:34 AM

Re: sticker, Love how it is equipped and love the exterior color! Could a car that is gold have a dark green interior and a brown top, like this one?

Title: Re: 12 Bolt Rear End Identify
Post by: 69Z28-RS on January 30, 2016, 04:21:37 AM

I can't say about the 'brown' roof, but I've seen a few gold cars with green interior... (sorta ugh in my opinion)... (I thought they generally had green roofs??)...

Title: Re: 12 Bolt Rear End Identify
Post by: BULLITT65 on January 30, 2016, 04:51:27 AM

Awesome, Awesome, Awesome . How else can you explain that order??

The original owner had a plan, and new their color palette .

How could you not go back with that combo?

To me this combo is no different than the Burgundy car with red stripes, not everyones cup of tea, but for the late 60's , I say bring it on! 8)

Title: Re: 12 Bolt Rear End Identify
Post by: uscgreel on January 30, 2016, 12:44:50 PM

Yeah when I first saw the thing, I had to beg the wife to overlook the color combo! There has been some other things that I question the sticker, RPO N34 Wheel...I don't have that

Title: Re: 12 Bolt Rear End Identify
Post by: HustleRussell on January 30, 2016, 01:24:50 PM

uscgreel

             Have you verified what gear is in your rear end? And also is it a posi? Could the stamp be wrong??

Title: Re: 12 Bolt Rear End Identify
Post by: cook_dw on January 30, 2016, 02:25:31 PM

Do you have the protect-o-plate?

Title: Re: 12 Bolt Rear End Identify
Post by: bcmiller on January 30, 2016, 04:46:03 PM

Not sure about the window sticker.

Title: Re: 12 Bolt Rear End Identify
Post by: bcmiller on January 30, 2016, 04:48:17 PM

Can you tell us the casting date on the center section of the rear axle?

Title: Re: 12 Bolt Rear End Identify
Post by: uscgreel on January 30, 2016, 06:08:45 PM

Quote from: 1969Z27 on January 30, 2016, 01:24:50 PM

uscgreel

             Have you verified what gear is in your rear end? And also is it a posi? Could the stamp be wrong??

It is a posi, drives like a 4.10, and is 12 bolt. But as far as opening it up, no I haven't done that....But as I am typing this, there is probably a way to count the revolutions. Might look into that...

Title: Re: 12 Bolt Rear End Identify
Post by: KurtS on January 30, 2016, 07:45:49 PM

Unfortunately, that window sticker is not an original. :(

Title: Re: 12 Bolt Rear End Identify
Post by: firstgenaddict on January 31, 2016, 07:32:54 AM

Quote from: KurtS on January 30, 2016, 07:45:49 PM

Unfortunately, that window sticker is not an original. :(

I also agree it is not an original... :(
FWIW The ECL codes are wrong.

Title: Re: 12 Bolt Rear End Identify
Post by: uscgreel on January 31, 2016, 05:51:46 PM

Ok, thanks.

Title: Re: 12 Bolt Rear End Identify
Post by: 1968RSZ28 on January 31, 2016, 06:08:42 PM

VIN: 124379N660601

Paul

Title: Re: 12 Bolt Rear End Identify
Post by: BULLITT65 on January 31, 2016, 06:22:55 PM

Well the good news is , maybe your rear end is original then?

Title: Re: 12 Bolt Rear End Identify
Post by: bcmiller on January 31, 2016, 11:00:15 PM

I think it could be original. If it has the right casting year.

Title: Re: 12 Bolt Rear End Identify
Post by: fsc66 on February 21, 2016, 04:46:03 PM

This window sticker is not real.

Paul

Title: Re: 12 Bolt Rear End Identify
Post by: HawkX66 on February 22, 2016, 01:05:30 PM

If you jack up the rear end and spin the wheels, you can figure out what rear end gears are in your housing. If the driveshaft spins ~4.1 times per revolution of the tires, you have 4.10 gears. 3 1/2 times, 3.55s. No need to crack open the diff cover.