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8 1/4 rear swap
https://www.slantsix.org/forum/viewtopic.php?t=4909
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Author:  DART68 [ Fri Jan 31, 2003 12:41 pm ]
Post subject:  8 1/4 rear swap

My 7 1/4 died today. I have a 8 1/4 rear,drive shaft,shock mounts,and large bolt pattern rims from a 76 Dart. Will this be a direct bolt-in? Thanks for any replies.

Author:  Dart270 [ Fri Jan 31, 2003 1:32 pm ]
Post subject: 

See my slantsix.com post. Also, you will need U-bolts for the 3" diameter tubes on the 8.25" axle.

Lou

Author:  DART68 [ Fri Jan 31, 2003 4:07 pm ]
Post subject:  Thanks Lou

I also checked .com site. I just returned from my local spring shop to get fresh nuts and washers for my new u-bolts. I ordered some factory replacements from a Dodge Dealer for a 2-wheel drive 87 Dakota.
Thanks again.

Author:  bud L. [ Fri Jan 31, 2003 6:50 pm ]
Post subject:  hard to say

hard to say if you'll need to shorten your d/s, or get one made up.

Author:  DusterIdiot [ Fri Jan 31, 2003 7:11 pm ]
Post subject:  Driveshaft change needed...

If you got the rear out of a 76 Dart you'll need the driveshaft from that car, if you got it from a Dart sport, you'll need a new driveshaft to fit your Dart.


-D.Idiot

Author:  DART68 [ Sat Feb 01, 2003 7:24 am ]
Post subject:  Call me lucky

The Dart in question was a standard Dart body and not the Sport model. If I'm correct the Sport models share the same 108" wheelbase as Valiants, Demons, Dusters, and early Cudas. The Darts have a 111" wheelbase, but I'm not sure what other A-bodies share that wheelbase.

Author:  DusterIdiot [ Sat Feb 01, 2003 10:06 am ]
Post subject:  Go get that driveshaft....

If your rear came out of a standard Dart then you need that driveline since your car is a 'dart' , 8 1/4" A-body rear cars are getting hard to find in junkyards (only produced for 3 years...), so platform sharing among other models is going to be on a trial and error basis. I do think the 'Scamp' model of the Valiant was based on the 111" WB but it'd have to have an 8 1/4" rear for the driveline to work in your car...

good luck,

-D.Idiot

Author:  DART68 [ Tue Feb 18, 2003 3:02 pm ]
Post subject:  Its done

Well its all done. The rear and drive shaft that was donated by the 76 Dart went in perfectly. The 76 Dart was a slant/904 set-up for those wondering. The 87 Dak u-bolts were the perfect length.

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