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| Chicken Drumstick Member Since: 17 Aug 2020 Location: Near MK Posts: 738  
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Eh?
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24th Jan 2023 8:41am |
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| Retroanaconda Member Since: 04 Jan 2012 Location: Scotland Posts: 2647 
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I can only assume he is talking about the transfer box. Which is odd as it’s generally held to be the most robust bit of transmission that LR ever made.
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24th Jan 2023 9:00am |
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| hank Member Since: 12 Sep 2016 Location: South Wales Posts: 2300  
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Central diff lock? > 110 XS Double Cab
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24th Jan 2023 9:38am |
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| Naks Member Since: 27 Jan 2009 Location: Stellenbosch, ZA Posts: 2638  
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what now? I don't think I've ever hard of a CDL failing on a Defender, UNLESS there was PEBKAC involved  --
2010 Defender Puma 90 + BAS remap + Alive IC + Slickshift + Ashcroft ATB rear 2015 Range Rover Sport V8 Supercharged 
Defender Puma Workshop Manual: https://bit.ly/2zZ1en9 Discovery 4 Workshop Manual: https://bit.ly/2zXrtKO Range Rover/Sport L320/L322/L494 Workshop Manual: https://bit.ly/2zc58JQ |
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24th Jan 2023 9:46am |
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| portal pat Member Since: 05 Jan 2015 Location: South. Very south. Posts: 36  
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Yes, I am talking about the centre diff. lock. Probably OK with everything stock, but inadequate with much increased torque loads. Nothing suggests poor workmanship like wrinkles in the duct tape.
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24th Jan 2023 11:16am |
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| Naks Member Since: 27 Jan 2009 Location: Stellenbosch, ZA Posts: 2638
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I highly doubt that, I've been running BAS remap on mine since 2010 and done loads of off-roading since then with zero issues.
We did a 5-week trip in Namibia a while ago where the CDL stayed locked for +-4 weeks on all sorts of gravel roads. I call PEBKAC -- 2010 Defender Puma 90 + BAS remap + Alive IC + Slickshift + Ashcroft ATB rear 2015 Range Rover Sport V8 Supercharged
Defender Puma Workshop Manual: https://bit.ly/2zZ1en9 Discovery 4 Workshop Manual: https://bit.ly/2zXrtKO Range Rover/Sport L320/L322/L494 Workshop Manual: https://bit.ly/2zc58JQ |
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24th Jan 2023 11:24am |
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| hank Member Since: 12 Sep 2016 Location: South Wales Posts: 2300
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The two piece cross pins break don't they where they cross one another as they half diameter at that point. Ashcroft do a one piece HD upgraded cross pin https://ashcroft-transmissions.co.uk/product/hd-cross-pin/
The planet gears friction weld themselves to the crosspin too where the open diff is subject to wheelspin. > 110 XS Double Cab |
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24th Jan 2023 11:47am |
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| Chicken Drumstick Member Since: 17 Aug 2020 Location: Near MK Posts: 738
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The linkage, locking mechanism or the actual diff? The LT230 is generally quite proven, many have been used completely standard pushing 450+bhp in racing environments. If you don't lock the centre diff and constantly spin the open diff with high load differentials, e.g. on slippery surfaces such as sand and things. Then yes, you can break/wear them. But that is more abuse than anything. With the diff in the locked position they should be fine for this kind of use. |
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24th Jan 2023 12:59pm |
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| geobloke Member Since: 06 Nov 2012 Location: Nottinghamshire Posts: 4410
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Those are the weak points, along with the intermediate gear shaft which can stretch the holes in the casing. Hence the frequent leaks from that region. But apart from those the LT230 is a great gearbox  |
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24th Jan 2023 1:09pm |
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| portal pat Member Since: 05 Jan 2015 Location: South. Very south. Posts: 36
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No issues with the transfer case. Always lock the CDL when necessary, but on ashphalt and dirt roads 200 HP, 35s and lockers take a toll! Thrust washers shredded etc. Nothing suggests poor workmanship like wrinkles in the duct tape. |
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24th Jan 2023 11:52pm |
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| blackwolf Member Since: 03 Nov 2009 Location: South West England Posts: 17391
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So you're complaining about the centre diff itself, not the centre diff lock as per the thread title. No wonder there has been confusion!
The diffs fail quickly if wheels are spun unlocked, they're tough as hell when locked. Best bet is to fit an Ashcroft ATB centre diff. The last LR centre diffs with the value-engineered centre are horrible and should be avoided! |
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25th Jan 2023 7:38am |
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| portal pat Member Since: 05 Jan 2015 Location: South. Very south. Posts: 36
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Sorry. Out here we call it a centre diff lock unit. Agree, it works well locked, just unsatisfactory when open and trying to handle bulk torque. Nothing suggests poor workmanship like wrinkles in the duct tape.
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25th Jan 2023 11:52am |
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