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Thread: Rear e-diff retrofit to MY12 4.4 TDV8

  1. #11
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    The e-diff arrived at the depot today so as I was going to town anyway, I took the trailer. I'm not sure about the 60kg as I lifted it onto the rear of the trailer but it isn't particularly light. The control unit is marked as being from a D4 and is without the L322 mounting bracket so some porkies were told, therefore I'll have to make a bracket and have the diff calibrated prior to use but intended to anyway. The inside of the diff looks clean although the outside needs a scrub with a wire brush and some fresh paint.

    The replacement wiring harness for the epb/fbh pump that includes the e-diff and new drive-shaft seals and circlips also arrived today. However hurdle #1 has surfaced, being that the harness does not include the 3 connectors for the control unit, with the wires for the 3 facilities terminating primarily in 1 connector but power and earth in a 2nd connector. I have sought clarification from Duckworths regarding a possible 2nd harness that my version of the parts catalogue doesn't show, but perhaps there are different main harnesses with and without e-diff support that the parts catalogue doesn't show. Worst case will be the need to acquire the 3 control unit connectors either as new shells or from a wrecked vehicle with an e-diff and make-up the missing harness myself. As the terminating connector is the same as one of my Llams kit connectors, I already have extra pins if needed for the existing plug.
    MY12 RRV 4.4 TDV8 AB, +LLAMS, +e-diff, +ACC stop/go. Produce LLAMS for LR/RR, Jeep GC/Dodge Ram
    VK2HFG and APRS W1 digi

  2. #12
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    One step closer today, having found the mating connector for the replacement under vehicle harness.
    20160827_164259A.jpg

    The connectors for the control unit will be in the harness that runs across the rear to the fuse panel and because of all the wires and connectors in that bundle and therefore the expected high cost, I will obtain the connector shells for the control unit and make my own harness. The plug in the picture requires some extra pins but as the plug is the same as one of the LLAMS loom plugs, I have ready access to the required pins. I expect to have sockets for the control unit pins as they are the same as the large pins in the plug in the picture so have plenty of those from discarded early LLAMS looms. The plan is developing well.

    Edit: The connector part numbers have been identified and will cost around GBP 20 for 4 connectors plus shipping. Wiring diagrams have been retrieved.
    MY12 RRV 4.4 TDV8 AB, +LLAMS, +e-diff, +ACC stop/go. Produce LLAMS for LR/RR, Jeep GC/Dodge Ram
    VK2HFG and APRS W1 digi

  3. #13
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    Just out of interest I went to the 4WD show last week in Melb and asked at the Harrop stand whether they had made up a E diff that could be retro fitted to the back of a late model D4. The basic answer was no, too difficult to get it to integrate with the TC. ( expected answer )


    So will just have to make up with my poor 4WD driving skill


    Sorry, I know I have ventured off the forum topic

  4. #14
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    The RDCU connectors are of the same family as the TCCU connectors so I'm chasing a set of TCCU connectors from a D3/D4/RRS/RRV to re-use their sockets in new RDCU connector shells because a certain wreckers wants an arm and a leg for a used set of the RDCU connectors with short wires attached - a captive market for e-diff retrofits they think. A bonus is that one of the TCCU connectors is the same part# as one of the RDCU connectors. The folks at British Off-Road are being very helpful.
    MY12 RRV 4.4 TDV8 AB, +LLAMS, +e-diff, +ACC stop/go. Produce LLAMS for LR/RR, Jeep GC/Dodge Ram
    VK2HFG and APRS W1 digi

  5. #15
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    The TCCM connectors/wires didn't work out as I haven't been able to remove the sockets without the special tool. I'm sourcing new sockets and the plug not ordered with the others and for half the cost of the TCCM connectors, so should have stuck with my original plans. I'll note the part numbers and suppliers at the end of the project along with the rest of the details.
    MY12 RRV 4.4 TDV8 AB, +LLAMS, +e-diff, +ACC stop/go. Produce LLAMS for LR/RR, Jeep GC/Dodge Ram
    VK2HFG and APRS W1 digi

  6. #16
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    I could have done with the e-diff today but it's still sitting in the shed so had to make TC work overtime. The lane didn't fare well yesterday with a dozen or so 4wds some with trailers coming then going, chopping up mud-holes that my neighbour and I had been nursing by only slowly wading through. I was gently working my way along the edge quite well when the 2 right wheels dropped into deep holes stopping forward progress.

    20160922_093040A.mov_snapshot_04.11_[2016.09.22_21.28.49].jpg

    Clearance wasn't an issue, already at off-road +30mm, just lacking traction on 1 side. A few back and forth rockings then some right foot whilst in mud n ruts got it going but not before my wife thought that we were stuck fast. It would have been OK though as we had a toilet in tow, if only we could get to it. Oh yes, the neighbour rang later today saying that his Prado had grounded its diffs a little earlier although it wasn't still in the mud-hole when I went through later with my box trailer with a few rams on board, so presumably he freed himself too.
    MY12 RRV 4.4 TDV8 AB, +LLAMS, +e-diff, +ACC stop/go. Produce LLAMS for LR/RR, Jeep GC/Dodge Ram
    VK2HFG and APRS W1 digi

  7. #17
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    Jan 1970
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    Rear e-diff retrofit to MY12 4.4 TDV8

    Nice looking place there Graeme. But that part of the lane looks like it needs about $10k worth of rock and road base. Maybe you've done that and it's sunk into the clay. I've had that experience.
    L322 tdv8 poverty pack - wow
    Perentie 110 wagon ARN 49-107 (probably selling) turbo, p/steer, RFSV front axle/trutrack, HF, gullwing windows, double jerrys etc.
    Perentie 110 wagon ARN 48-699 another project
    Track Trailer ARN 200-117
    REMLR # 137

  8. #18
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    Jan 1970
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    North West Tasmania
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    Quote Originally Posted by rar110 View Post
    Nice looking place there Graeme. But that part of the lane looks like it needs about $10k worth of rock and road base. Maybe you've done that and it's sunk into the clay. I've had that experience.
    Yep me agrees , money needs to be spent on access.

    lovely country and nice to see some moisture after all the years of dry.

    Cheers

  9. #19
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    Jan 1970
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    This section is the latest to succumb to the water draining from the soil profile, with others previously patched with large blue-metal or drains dug with more spots already very messy. It has been an unusually wet winter though and droughts or dry springs are recent memories where dust and locusts was the scene.
    MY12 RRV 4.4 TDV8 AB, +LLAMS, +e-diff, +ACC stop/go. Produce LLAMS for LR/RR, Jeep GC/Dodge Ram
    VK2HFG and APRS W1 digi

  10. #20
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    Feb 2014
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    Melbourne
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    diff clearance is extremely under rated!

    Mine is sitting at over 15", well and truely more than a patrol on 35"s

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