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    Author Topic: 8 3/4 Rear End and 340 Engine  (Read 3987 times)

    Offline 1970ChallySE

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    8 3/4 Rear End and 340 Engine
    « on: January 26, 2010 - 02:42:38 PM »
    I already mentioned this in another thread under Suspension, but does anyone know if an 8 3/4 Rear End from a B-Body will fit correctly into an E-Body (specifically a Challenger)?

    I am also looking for an 8 3/4 Rear End.  Can anyone help?

    I would also be interested in a 340 as well.
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    Offline farmboy70

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    Re: 8 3/4 Rear End and 340 Engine
    « Reply #1 on: January 26, 2010 - 06:55:55 PM »
    You can use a 68-70 B-body in a Challenger with offset spring mounts.
    Dr Diff sells a kit for this.  In these pictures you may be able to see the offset mounts.This is a 70 b-body width Strange Dana.
    Dave
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    Offline MEK-Dangerfield

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    Re: 8 3/4 Rear End and 340 Engine
    « Reply #2 on: January 26, 2010 - 06:59:15 PM »
    The B-Body rear is shorter, that's why you need the offsets...But yes, it will fit in an E-body.
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    Mike

    1970 Challenger - SOLD
    2016 SXT+.  1 of 524 SXT+'s in Plumb-crazy for 2016.

    Offline bb71challenger

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    Re: 8 3/4 Rear End and 340 Engine
    « Reply #3 on: January 26, 2010 - 07:12:12 PM »
    Yep, it is one inch narrower. Gives you slightly more room for bigger meats   :burnout:
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    1971 Challenger (OO==== ====OO) getting close!
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    *Brett*

    Offline the_engineers

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    Re: 8 3/4 Rear End and 340 Engine
    « Reply #4 on: January 26, 2010 - 09:06:44 PM »
    Where are you?  I have a couple of 340 motors.
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    Brooks

    1971 'Cuda 360
    2004 Infiniti G35 6-spd Coupe
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    Offline Topcat

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    Re: 8 3/4 Rear End and 340 Engine
    « Reply #5 on: January 26, 2010 - 09:41:32 PM »
    Quote from: farmboy70 on January 26, 2010 - 06:55:55 PM
    You can use a 68-70 B-body in a Challenger with offset spring mounts.
    Dr Diff sells a kit for this.  In these pictures you may be able to see the offset mounts.This is a 70 b-body width Strange Dana.
    Dave


    How much does it offset? Can originals be fabbed? Any pics of mount up close?
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    Mike, Fremont, CA.

    Offline farmboy70

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    Re: 8 3/4 Rear End and 340 Engine
    « Reply #6 on: January 26, 2010 - 09:49:49 PM »
    Quote from: Topcat on January 26, 2010 - 09:41:32 PM
    How much does it offset? Can originals be fabbed? Any pics of mount up close?
    I just checked my pictures, it looks like I didn't take a good shot of the mounts. If no one posts a picture I can get one tomorrow.
    Dave
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    Offline ShelbyDogg

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    Re: 8 3/4 Rear End and 340 Engine
    « Reply #7 on: January 28, 2010 - 10:34:44 AM »
    Dr. Diff's kit is around $180. You can use a stock e-body rear but the spring perches will have to be cut off then rewelded 1" towards the inside. Using a 68-70 b-body rear, allows you to just drop it on to the moved springs without any welding. 
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    Rob

    3 E-bodies, Megasquirt-1v3.0, Edelbrock Pro-Flo-1, Holley C950, FAST EZ-EFI; say no to carbs...yes to throttle bodies

    My Pace Car restoration thread:
    http://www.cuda-challenger.com/cc/index.php?topic=44869.0

    Offline farmboy70

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    Re: 8 3/4 Rear End and 340 Engine
    « Reply #8 on: January 28, 2010 - 10:45:33 AM »
    These arre the left side, tough to get pictures where the car is right now. If you need better ones I can put it on the rack to get them.
    Dave
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    Offline Topcat

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    Re: 8 3/4 Rear End and 340 Engine
    « Reply #9 on: January 28, 2010 - 09:46:06 PM »
    Thanks for the pics Dave.   :2thumbs:

    I was helping Challenger500 today. He just bought a Dana 60 and needed me to haul it over to his place. After dropping it off, I got to see the offsets up close in person on his car.

    He's changing to a 4 link possibly so he said he might sell me his set up.
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    Mike, Fremont, CA.

    Offline farmboy70

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    Re: 8 3/4 Rear End and 340 Engine
    « Reply #10 on: January 28, 2010 - 09:50:56 PM »
    Sounds like a good deal :thumbsup:
    Dave
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    Offline Aracer

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    Re: 8 3/4 Rear End and 340 Engine
    « Reply #11 on: February 19, 2010 - 02:05:37 PM »
    I would like to add that the offset hangars supplied by Mopar are only .8".       Dr.Diff's are 1" and reduce the stress you see on the rubber bushing.  I used Prothane #4-802-BL bushings instead.         Nice color car!
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    Offline jvike

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    Re: 8 3/4 Rear End and 340 Engine
    « Reply #12 on: March 08, 2010 - 05:44:34 PM »
    I have an B-Body 8-3/4. On My axle the leafspring shoes on the axle had been moved to fit. Now I have an XV Level II setup. Did use the Dr.Diff hangers to move the trailing arms inwards. Hopefully I'll be able to fit 18x12 with 335's

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