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Old 01-20-2011, 11:57 AM
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1970 Roadrunner

Can someone tell me how to tell if my 70 Roadrunner came from factory with a Dana rear? Thanks a lot!!
Stiffy

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Old 01-20-2011, 12:02 PM
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You can start here. http://www.mymopar.com/6971opcodes.htm .
Does the center section load from the front or the rear and does it have a rear cover plate on it ?

Cole

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Old 01-20-2011, 04:01 PM
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Most came with 8 3/4" rear. Hemi cars were Dana.
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Old 01-21-2011, 10:50 PM
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Was it maybe just Hemi & 440-six pack 4 speeds?

I had a 70 Challenger RT 440-six and it had a Dana 60 4.10.
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Old 01-22-2011, 11:58 AM
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On the fender tag check for the following codes:

D56 = B&E-Body 3.54:1 "Dana 60" Rear Axle (69-71) HOWEVER, this code could also be B&E-Body 8.75" 3.55:1 Rear Axle (69-71)

D58 = 9.74" 4.10:1 "Dana 60" Axle (69-71)

D59 = B&E-Body 9.75" "DANA 60" 4.56:1

If your fender tag indicates an original 383 (E65) then you can be almost certain (99.9%) that your car came from the factory with an 8 3/4" rear end.

Centerline
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Last edited by Centerline; 01-22-2011 at 12:04 PM.
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