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Rear end
https://www.slantsix.org/forum/viewtopic.php?t=48537
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Author:  Rick Covalt [ Sat Apr 14, 2012 12:28 pm ]
Post subject:  Rear end

Does anyone know if an 8 3/4 rear out of a 1970 1/2 ton truck would be the same width as my 85 1/2 ton with the 8 1/4? Over all, and spring perches? I have my eye on one and I was wondering how much will need to be changed to make it work. Oh, and would the bolt patterns be the same?

Thanks Rick

Author:  sixinthehead [ Sat Apr 14, 2012 2:04 pm ]
Post subject: 

AFAIK, it should bolt in, but I think the 85 has the larger bolt pattern (5x5").

Author:  Rick Covalt [ Sat Apr 14, 2012 2:06 pm ]
Post subject:  Pattern

Yes my 85 has the 5 on 5". Are the older ones 4 1/2"

Author:  Mroldfart2u [ Sat Apr 14, 2012 2:13 pm ]
Post subject:  Re: Pattern

Quote:
Yes my 85 has the 5 on 5". Are the older ones 4 1/2"
Yep...

Author:  slantzilla [ Sat Apr 14, 2012 2:58 pm ]
Post subject: 

My '82 had 4.5". :shock:

Author:  Mike_64_Valiant [ Sat Apr 14, 2012 4:42 pm ]
Post subject: 

I have parted out a couple 70s-80s dodge pick ups all 4x4s and they have had 5 on 5 0r 5 on 4.5 It had to do with wether the front axle had manual hubs or not. Front manual should be 5 on 5 and the back axle would match in that case.

Author:  Rick Covalt [ Sat Apr 14, 2012 5:09 pm ]
Post subject: 

Well, mine is a 2WD. But if the 82 could have 5 X 4 1/2" then I could swap front rotors and get to a pattern to match my new 8 3/4. That would be fine too. A lot more rim choices!

Rick

Author:  Romeo Furio [ Sat Apr 14, 2012 6:19 pm ]
Post subject: 

I think 84/85 was the transition period,I had a 84 that was 4 1/2.

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