Another 8 3/4 Detail Question

Another 8 3/4 Detail Question - 03/19/12 08:42 PM

I'm working on a '69 GTX with a 440, auto on the column, 8 3/4 with a sure grip 3.23. When cleaning it up I was able to find just a few black stripes under the chuck and you could see remnants of the white number on the side. The yellow stenciled numbers on the axle tube couldn't be seen. What are the correct numbers to go back on the rear end? And what do these numbers mean? Thanks for the help!!

Justin
"CornDog"

Posted By: Anonymous

Re: Another 8 3/4 Detail Question - 03/19/12 09:08 PM

Considering I never got a decent answer when I asked this question, I would like to know these things too!

Posted By: kentj340

Re: Another 8 3/4 Detail Question - 03/25/12 03:29 AM

Quote:

I'm working on a '69 GTX with a 440, auto on the column, 8 3/4 with a sure grip 3.23. When cleaning it up I was able to find just a few black stripes under the chuck and you could see remnants of the white number on the side. The yellow stenciled numbers on the axle tube couldn't be seen. What are the correct numbers to go back on the rear end? And what do these numbers mean? Thanks for the help!!

Justin
"CornDog"

If you are interested in what's stenciled and daubed on my '69 Barracuda A body 8 3/4 non-Sure Grip 3.23 built Hamtramck Nov '68 and how the markings relate to my build sheet (and part numbers), PM me with your email address so I can email back attachments.

Attached picture 7134283-03RearAxle3.jpg

Attached picture 7134283-03RearAxle3.jpg

Posted By: 1_WILD_RT

Re: Another 8 3/4 Detail Question - 03/25/12 04:38 AM

Quote:

I'm working on a '69 GTX with a 440, auto on the column, 8 3/4 with a sure grip 3.23. When cleaning it up I was able to find just a few black stripes under the chuck and you could see remnants of the white number on the side. The yellow stenciled numbers on the axle tube couldn't be seen. What are the correct numbers to go back on the rear end? And what do these numbers mean? Thanks for the help!!

Justin
"CornDog"

Along with the three black stripes there should be a orange stripe to indicate it's a suregrip...
The numbers on the axle tube are the last three digits of the axle part number and the axle assembly date code....You need to have more info to pinpoint which axle it should have, drum or disc brakes? the number is shown on the broadcast sheet...
FWIW the white daub on the yoke indicates the pinion was torqued And typically there will be a assembly date on the pumpkin as well as the axle assembly date...

Posted By: NV69B7RR

Re: Another 8 3/4 Detail Question - 03/25/12 02:34 PM

Heres my Duster rear end and pumpkin. Note the assy date is on both.

Attached picture 7134637-rearund.JPG

Posted By: NV69B7RR

Re: Another 8 3/4 Detail Question - 03/25/12 02:36 PM

3:91 sure grip Pumpkin

Posted By: CornDogsCharger

Re: Another 8 3/4 Detail Question - 03/25/12 03:16 PM

Great info! This GTX had manual brakes, 11x3 drums up front and 11x2.5 drums on the the rear. I wish I had more info to make it absolutely correct but this car's build sheet was lost long ago. Everything else we have (fender tag, window sticker).

When you said the #'s on the tube are the last 3 digits of the axle... do you mean the actual axle or the axle housing? I looked up the parts in the '69 parts catalog and the housing is 2852838 and the axle itself is 2852826. Which is correct? And usually, how far before the Scheduled Build Date should the rear axle assembly be dated? This GTX has a build date of 9-06-68. Thanks!!

Justin
"CornDog"

Posted By: NV69B7RR

Re: Another 8 3/4 Detail Question - 03/25/12 05:42 PM

My SPD is Oct 14, so 1 month before in my case.

Posted By: 1_WILD_RT

Re: Another 8 3/4 Detail Question - 03/25/12 06:18 PM

69 B body 3.23 SG 11" drums 7290 yoke 489 case is axle # 595

Per my fender tag my Challenger's SPD is A13 (Oct 13th) but the axle dates were pumpkin 10-27, assembly 10-28.... Obviously my car was a little late.. The engine was assembled 10-14 & the original door sticker shows the car was built in Oct 69 so at least for my car there was much lead time.....

Posted By: 68jim

Re: Another 8 3/4 Detail Question - 03/25/12 09:02 PM

Quote:

Along with the three black stripes there should be a orange stripe to indicate it's a suregrip...
The numbers on the axle tube are the last three digits of the axle part number and the axle assembly date code....You need to have more info to pinpoint which axle it should have, drum or disc brakes? the number is shown on the broadcast sheet...
FWIW the white daub on the yoke indicates the pinion was torqued And typically there will be a assembly date on the pumpkin as well as the axle assembly date...

Do the three black and one orange dabs also apply to a 68 version as well? 742 case, 3:23 sure grip.

Jim

Posted By: 1_WILD_RT

Re: Another 8 3/4 Detail Question - 03/25/12 11:16 PM

742 is probably gonna mean a different color stripe... I know the 489 3.23 SG with the 7290 yoke in 69-70 was three black & an orange stripe... Wish I knew more...