[70chevelle327]

Yeah i have a 1970 chevelle malibu w/ an 8.2 inch 10 bolt rear end. Right now i am looking at buying a 12 bolt out of a 1967 chevelle SS 396 car. It has a posi w/ 3.73 gears, new bearings, wheel cylinders, and it also includes the brake drums, etc. Now it has a date code and axle tube code that i want to verify and see if it is actually out of a 67 chevelle. The date code is 1 8 7 and the axle tube code is CE 02 06 B. Now my final questions is will this rear end fit under my 70 chevelle if it is out of a 67 chevelle? I heard from somebody that the 67 rear end would be shorter by an inch and a half?

-thanks a ton
Ryan

[poncho62]

It is slightly shorter than the 70 rearend, but will bolt right in. Gives you a bit more room for bigger tires. I put a 67 12 bolt in my 68 and it fit fine................

[70chevelle327]

Great deal, thanks for the help poncho!

By the way nice looking 68.

[poncho62]

If you look closely, you can see that its not really a Chevelle. Its a Beaumont, which is a Canadian version of the Chevelle, which was sold by Pontiac dealers in the 60s. It, like all Canadian Pontiacs, use Chevy frames and drivetrains. Mine had a 327 4 speed. The picture was taken in 77, the car is long gone now.

[69elcaminoss]

Did they go to the different spring perches in 1968 or 1967, I can't remember . If it was 1968 you will have to weld on your old spring perches and remove the other ones as the pre 67 or 68 (not sure) have a different mounting style.

[poncho62]

You don't have to change anything. All the mounting points are the same. The housing is just a bit shorter in length.

[Sandflea427SS]

67 had the same spring perch....just 5/8 inch narrower on each side than the 68-72.........

[70chevelle327]

Well thanks for all the help everybody, I'm going to try and meet up with the guy today and buy the rear end. I'll let you all know how it works out.
Thanks again
-Ryan

[chevmal]

Those 12 bolts out of the 66-67 Chevelles are worth there weight in gold .I seen them as high $1000. Al

[406chevelle]

The following is some of the information I gathered while locating a 12 bolt rear end for my 72 chevelle.

The CE axle code was used from 1965 thru 1969 for the 12 bolt positrac 3.08 gear ratio rear ends, which were in the 67 chevelles. Better check the gear ratio to see if it has been changed to the 3.73 gears.

64-67 chevelle rear end housings measured 56.5 inches from flange to flange, and 60.5 inches total length with the drums in place.

68-72 chevelle rear end housings measured 58.5 inches from flange to flange, and 62.5 inches total length with the drums in place.

Rear spring mounting pads on the 64-66 rear ends used a flat pad with a hole drilled in the center, the 68-72 rear ends have a circular spring mounting pad, that are 3/4 of an inch higher that the flat pads.

1967 was a transition year in which the A-body cars might have a 64-66 style rear end, a 68-72 style rear end, or a "hybrid" rear end that will have the 58.5 inch width, but will have the early spring mounting pad and trailing arm brackets.

Rear upper control bushing eyes differ, and the postion of the bushing eyes will differ. 68-72 rear end housings will have a 3/8 inch forward positioning, which is farther than the 65-67 rear ends.

65-67 upper trailing arms are 1 inch shorter and will not fit into 68-72 A-body cars, 68-72 A-body cars have longer upper arms and when switching upper arms the pinion nose angle will be affected.

[Crosley]

nice information...

a thread that was 2 years and 5 months old was revived.

[astroracer]

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