"8 vs 9" Rear end

Bramick_old · December 4, 2008 at 3:28 PM

My car's a 65, but it looks like its a 66 rear end. Is it at least a 9"? If so, how can I tell? http://flickr.com/photos/bramick/3083164588/

C6ZZKGT · December 4, 2008 at 4:24 PM Official Post

That is definitely the later 66 style.

-Fred-

C6ZZKGT · December 4, 2008 at 4:28 PM Official Post

The snubber is the 66 style as well.

-Fred-

66KGT_old · December 4, 2008 at 10:05 PM

Looks like a 66 9" to me. Is there still a tag on it?

Bramick_old · December 11, 2008 at 5:26 PM

Yes I was pretty sure it was a 66 rear end.

My question is how do I tell if it's a 8" or 9".

Where would the tag be? I'm guessing probably not though.

65Rangoon_old · December 11, 2008 at 6:20 PM

<BLOCKQUOTE id=quote>quote:<hr height=1 noshade id=quote> My question is how do I tell if it's a 8" or 9".<hr height=1 noshade id=quote></BLOCKQUOTE id=quote>

Look at the two bottom most nuts that hold the pumpkin to the housing. If it's a 9", those two nuts are not accessible with a ratchet/socket setup, but can only be loosened/removed with a box or open-end wrench or possibly a crows foot.

C6ZZKGT · December 11, 2008 at 6:24 PM Official Post

This is an addition to Charlies post as he put his up just before I did this one and this is just another way to explain it. The fact that it has a bolt on snubber and the shape of the housing makes it a 9 inch for sure. The easy way to tell without any measuring, or even being able to see in the dark, is to check the lowest retaining nuts for the third member. If you cannot get a deep 9/16" socket on the nut, then it is a 9 inch. The reason that you would not be able to get the socket on is that the 9 inch pinion casting sticks down far enough to interfere with the socket. The 8 inch is a straight shot.

-Fred-

Bramick_old · December 17, 2008 at 9:04 PM

Thanks guys.

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