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Thread: L494 underbody

  1. 2nd December 2017, 05:45 PM #1
    Geedublya
    Geedublya is offline Wizard Silver Subscriber
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    L494 underbody

    Looking at a SDV8 and noticed it has a box hanging off the rear diff which looks a bit vulnerable. Anyone know what it is? Is it relocatable?

    Anything I need to look out for on the RRS? I’m mainly be doing the daily grind and towing the 3 tonne caravan, not much off road these days now I’m back on the enduro bike.
    Fuji white RRS L494 AB Gone
    2023 Ford Ranga
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  2. 3rd December 2017, 05:22 AM #2
    Graeme
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    Is it a lump of metal for resonance damping?
    MY21.5 L405 D350 Vogue SE with 19s. Produce LLAMS for LR/RR, Jeep GC/Dodge Ram
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  3. 3rd December 2017, 08:55 AM #3
    Geedublya
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    It looked to have cabling going to it. At first I thought it was a cooler but it looked like it was electrical. Surprisingly it has an e-diff.
    Fuji white RRS L494 AB Gone
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  4. 3rd December 2017, 09:48 AM #4
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    p38arover
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    Dunno about the RRS, but previous beam axle models with the cast iron/steel vibration damper on the diff have a restraining safety cable attached to (supposedly) hold it if the bolt comes out.
    Ron B.
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  5. 3rd December 2017, 12:13 PM #5
    Geedublya
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    Thanks, I’ll look closer.
    Fuji white RRS L494 AB Gone
    2023 Ford Ranga
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  6. 3rd December 2017, 12:31 PM #6
    Graeme
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    I wonder if an oil cooler has been introduced for the e-diff. No cooler was fitted to the first L405.
    MY21.5 L405 D350 Vogue SE with 19s. Produce LLAMS for LR/RR, Jeep GC/Dodge Ram
    VK2HFG and APRS W1 digi, RTK base station using LoRa
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  7. 11th December 2017, 12:46 PM #7
    BobD
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    That alloy box is on my 2013 L405 also. It looks purpose made to jack the diff until you read the engraved writing which says DO NOT JACK!! I hope any tyre people can read it because it would just snap off if they jacked off it. Mine doesn't have an ediff. No wires to mine either.
    Bob

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  8. 26th February 2018, 04:23 AM #8
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    Barryp
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    It is the "differential case damper".

    Manual says:
    "Make sure, if the vehicle is required to be jacked at the rear, that the hydraulic jack (with suitable block of hardwood) is
    positioned correctly as illustrated."

    Illustration in manual shows centre of diff as a jacking point, damper is shown as a "no jacking" point.
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    Barry
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  9. 26th February 2018, 08:34 AM #9
    Gregz
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    According to the RRS workshop manual "A damper weight attached to the rear of the differential is used to control torsional vibrations".
    Bot the open diff and the e-diff have this. If you are looking at a SDV8 RRS, they all have the e-diff in Australia, whether they are just HSE or HSE Dynamic model (HSE Dynamic only really gives red brake calipers and higher top speed over the regular HSE for SDV8) . For SDV6 you need to specify the Dynamic option to get the e-diff. You can tell if the RRS has the Dynamic option , and thus the e-diff, by looking to the left of the TR control knob... if there is the curvy road symbol then it has the Dynamic option .
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  10. 6th March 2018, 02:04 PM #10
    Geedublya
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    Quote Originally Posted by Gregz View Post
    According to the RRS workshop manual "A damper weight attached to the rear of the differential is used to control torsional vibrations".
    Bot the open diff and the e-diff have this. If you are looking at a SDV8 RRS, they all have the e-diff in Australia, whether they are just HSE or HSE Dynamic model (HSE Dynamic only really gives red brake calipers and higher top speed over the regular HSE for SDV8) . For SDV6 you need to specify the Dynamic option to get the e-diff. You can tell if the RRS has the Dynamic option , and thus the e-diff, by looking to the left of the TR control knob... if there is the curvy road symbol then it has the Dynamic option .
    Dynamic also adds (on MY2014 SDV8) Active vanes (blocks of grill to improve aero), Dynamic response (active roll control), Torque vectoring, Dynamic program (tunes suspension for better handling) and more options some at no or less cost for interior and exterior.
    Fuji white RRS L494 AB Gone
    2023 Ford Ranga
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