Difference between 62-63 & 64-67 Rear End? - Chevy Nova Forum
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Old 21st-January-2008, 05:43 AM   #1
Nova1963
 
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Difference between 62-63 & 64-67 Rear End?

What is the difference between the 62-63 and 64-67 Nova 8.2" rear end? According to Classic Industries the 62-63 rear axle bearings cost $90 while the 64 and later are $30. It appears the 62-67 rear ends are the same dimension wise. Are the 62-63 axles weaker?

Also, how do you guys go about changing the rear end to 5 lug? Do you have your axles redrilled or do you buy new axles?
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Old 21st-January-2008, 06:00 AM   #2
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Nova 1963,

First of all, welcome to the site!! You will love it here.

The 62-63 rears look like te Ford 9 inchers..........pumkin with gears is removeable from the front of the casing, while the 64-67 rears are a one-piece design (gears are bolted directly into the housing. These have a bolt-on cover facing the rear of the car which are removed for maintenance/repair work.

People have redrilled their axles on their 62-63, while others (including myself) have installed swapped out their rear for a 64-67. This of course gives you the desireable 5-bolt pattern. If you are lucky enough to find a 64-67 parts car, you can swap out the rears and also swap the spindles/steering arms. I did that as well, and converted to disc brakes while doing so.

Hope this helps
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Old 21st-January-2008, 11:48 AM   #3
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I'd pass over the 64 diffs unless you get a great deal on it. The axle splines are cut at a different angle so if you ever get a bad axle or break your spider gears you will need to replace the the axles & spiders since they only reproduce the 65-67 parts. I'm sure you could always order custom axles for the 64 but they cost like $350 a set or so and take a couple of weeks to get made & delivered.

Miles
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Old 21st-January-2008, 12:17 PM   #4
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i've got a set of 64-67 axles if anyone needs them.
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Old 21st-January-2008, 01:14 PM   #5
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Originally Posted by JBimmolate View Post
I'd pass over the 64 diffs unless you get a great deal on it. The axle splines are cut at a different angle so if you ever get a bad axle or break your spider gears you will need to replace the the axles & spiders since they only reproduce the 65-67 parts. I'm sure you could always order custom axles for the 64 but they cost like $350 a set or so and take a couple of weeks to get made & delivered.

Miles
Hey Miles,

I have a 64 rear on my 63. I also have a set of Strange 3.73 gears, an eaton posi, and a rebuild kit, and I plan on getting Moser axles. Will the rear end work with that stuff? Anything else I will need to buy?
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Old 21st-January-2008, 03:51 PM   #6
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What are the chances of finding a 65-67 rear end? How much do they usually go for? I don't need anything fancy since I still have the 194. What are my other options? Has anyone just redrilled the 62-63 axles for the 5 lug setup? If so, is this something that should be done at a shop? Thanks for your help guys.
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Old 21st-January-2008, 04:19 PM   #7
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What are the chances of finding a 65-67 rear end? How much do they usually go for? I don't need anything fancy since I still have the 194. What are my other options? Has anyone just redrilled the 62-63 axles for the 5 lug setup? If so, is this something that should be done at a shop? Thanks for your help guys.
They are out there you will have do some looking, todays prices are up probably have to spend 250.00 - 350.00 for a open rear end and 500.00-600.00 for a posie
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Old 21st-January-2008, 05:42 PM   #8
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What are the chances of finding a 65-67 rear end? How much do they usually go for? I don't need anything fancy since I still have the 194. What are my other options? Has anyone just redrilled the 62-63 axles for the 5 lug setup? If so, is this something that should be done at a shop? Thanks for your help guys.
I would guess that for the price of redrilling, your better off finding a 65 - 67 nova 10 bolt. The 10 bolt is stronger as well. Another consideration no one has mentioned is the brakes. The 10 bolt brake shoes are wider and taller then the 62 - 63 style. So you get better braking and strength from a 10 bolt as well. Avoid the 64's like has already been mentioned. If you can find an 8 inch ford out of a Maverick grabber or 65-69 mustang, that will fit and be plenty strong as well. Also, the 8 inch 28 spline axles will fit the 9 inch 28 spline 3rd member as well.
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Old 21st-January-2008, 09:05 PM   #9
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Hey Miles,

I have a 64 rear on my 63. I also have a set of Strange 3.73 gears, an eaton posi, and a rebuild kit, and I plan on getting Moser axles. Will the rear end work with that stuff? Anything else I will need to buy?
Yes the parts will all work since you are putting in all new parts. Just make sure when you order the axles you get them for a 65-67 since they may machine the 64 axle with the stock spline angle and then they would not be right for the posi unit. My only other suggestion would be a T/A style girdle (cover) Summit & Jeggs has their own house brands as well.

Miles
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Old 21st-January-2008, 10:42 PM   #10
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I don't know if this is true but my friend told me that you can get a S-10 diff and they will work on the nova.... true or not true?
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Old 22nd-January-2008, 12:09 AM   #11
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I have heard about the S-10 rear end as well but I don't think they are as wide as the Nova. If you check out E-bay there are some people who sell the S-10 rear ends and they say that they are 54.5" wide. According to NovaResource.com the 62-67 is 57.75" wide. I don't know how that would work on the Nova. Are there tire clearence problems on the inner or outer rear fender of the Nova?
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Old 22nd-January-2008, 12:28 AM   #12
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Check out Tom's wrecking yard in Irwindale by the Irwindale Speedway. He had several Nova's in the yard last time I was there. I got my 5 lug out of a 66 from his yard. Also, place an add in the site's wanted section. Big HP guys have no use for the 8.2 10 bolts and put them up from time to time.

Skraps
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Old 22nd-January-2008, 12:30 AM   #13
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Yes the parts will all work since you are putting in all new parts. Just make sure when you order the axles you get them for a 65-67 since they may machine the 64 axle with the stock spline angle and then they would not be right for the posi unit. My only other suggestion would be a T/A style girdle (cover) Summit & Jeggs has their own house brands as well.

Miles
Thanks for your input! The girdle cover was definitely already on the shopping list, so it's good to have confirmation. When I buy the axles , I will make sure the spline angle is for 65-67.
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Old 24th-January-2008, 01:52 AM   #14
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Will the backing plates from a 63 Nova swap onto the 65-67 rear end?

Also will Chevelle backing plates/drums swap onto the 65-67 rear end?
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Old 24th-January-2008, 11:52 AM   #15
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What are the dimensions on Camaro rear ends? I was told they are about 1" wider than the Nova which may actually be helpful in finding wheels with less offset. Does anyone know the actual dimensions?
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