[allryz70]

Guys I need your opinions. I have a GM 12 bolt out of a 70 Judge that has been update with some race items (reason I am posting here). Just trying to get an idea what you guys think it is worth. The thing (beside housing) has less than 1000 mile street driven and less than 100 strip passes so everything is in excellent condition. Also if anybody is interested shoot me a PM.

Updates:
Eaton Posi (3 Series)
Strange Axles (30 spline)
Support Cover
Disc Brake Conversion
2 Set of Richmond Gears

Thoughts are appreciated....Thank you!

[mrrat1]

1250-1500 I would guess

['ol Pinion head]

Welcome to the board!

Value... depends. There was a '70 12 bolt advertised on eBay as out of '70 Judge for over two years. That particular rear was actually out of a Canadian built '69 Skylark, nothing special and it never sold.

What's the stamped letter and number code on the passenger side axle tube? Whose disc brake conversion? Is the housing deeply pitted from rust? What ratio gears are in it?

[Hooter]

I sold a similar built Chevelle 12 bolt for $1100 2 years ago

[allryz70]

Originally Posted by 'ol Pinion head

Welcome to the board!

Value... depends. There was a '70 12 bolt advertised on eBay as out of '70 Judge for over two years. That particular rear was actually out of a Canadian built '69 Skylark, nothing special and it never sold.

What's the stamped letter and number code on the passenger side axle tube? Whose disc brake conversion? Is the housing deeply pitted from rust? What ratio gears are in it?

The numbers on the tube that I can see are 12345 (bottom side of tube)....then 67890 (top). Then one of the webbing has k298 (passenger side) and the other has 00N1. Does these help any?
The disc brakes are off of a ford production vehicle...not sure what one. Housing is in great shap with little to no rust. I have a 3.90 and I don't recall what is currently in it. If I find somebody seriously intrested I will take it apart to verify.

Thanks

[allryz70]

Thank you for the welcome too 😀. I been a member for a while.....read all the time but rarely post

[blubiu65]

so its a 68 housing not a 70. k 29 8 represents November 29th of 68. it would have been installed in a 69 model year vehicle, but is a 68 built housing.

[allryz70]

That is intresting. It was my fathers 70 judge it came out of. He bought it used in in 75 though. The car was rear ended but I don't think there was enough damage to knock out the rear end. Wonder if any 68 rear ends made it to 1970 build year.

['ol Pinion head]

it's not just the early '69 model dating in the lower rear webbing. An original McKinnon cast 12 bolt housing used in a '70 455 GTO would not have a date in the lower rh webbing, it's a different casting housing.

My main thoughts as far as the value range is if the rearend was say, an original XV coded 12 posi out of a '70 GTO, the hsg itself would hold more value, and the sum of the parts would be worth more than an assembled street machine type build with rear disc brakes. In that case, it wouldn't hurt to part it out, sell the hsg to a '70 455 GTO owner needing it, and the rear disc pieces (sounds like SSBC early ford Explorer pieces) to a street machine type builder.

It would still be interesting to know what original letters and numbers are stamped into the passenger side axle tube. The rear may have started out as a common 2.73 single track out of a '69 Malibu or ElCo, or it may have been a 3.55, 3.73, or 4.10 posi coded 12 bolt with restoration value to a '69 Chevelle or BBC ElCo owners.

[allryz70]

Originally Posted by 'ol Pinion head

it's not just the early '69 model dating in the lower rear webbing. An original McKinnon cast 12 bolt housing used in a '70 455 GTO would not have a date in the lower rh webbing, it's a different casting housing.

My main thoughts as far as the value range is if the rearend was say, an original XV coded 12 posi out of a '70 GTO, the hsg itself would hold more value, and the sum of the parts would be worth more than an assembled street machine type build with rear disc brakes. In that case, it wouldn't hurt to part it out, sell the hsg to a '70 455 GTO owner needing it, and the rear disc pieces (sounds like SSBC early ford Explorer pieces) to a street machine type builder.

It would still be interesting to know what original letters and numbers are stamped into the passenger side axle tube. The rear may have started out as a common 2.73 single track out of a '69 Malibu or ElCo, or it may have been a 3.55, 3.73, or 4.10 posi coded 12 bolt with restoration value to a '69 Chevelle or BBC ElCo owners.

Ol Pinion Head,
I drugged that old rear end out of the corner and found some more numbers on it.
The front of the pumking (bottom webbing) has "GM 57". Then on the other side it has "3959038 NF".
On the passanger side axle tube (in the front) I found (after some sanding) engraved "RA" kind of in the center of the tube all by itself. Then, closer by where the tube is welded to the pumkin, it is engraved with "1230K". It is actually stampped twice.
I am wondering if they stamped it twice as the first one was hard to read (which it was).

Does any of these number help narrow it down to what rear end I may have?
Thank you for your help!

PS...Your PM box is fill

[Skip Fix]

Here basic 12 bolt open housings go for $500.