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Last Boy Scout
Member Since: 12 Apr 2019
Location: Ayrshire
Posts: 140
  
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| Does the D4 Auto Gearbox work in the RR Sport |
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Good evening peeps!
I’m in the process of swapping the 3.0 Engine on my RR Sport….I have another Engine and Box to go in from a D4….question is…can i also use the D4 Box….so basically swap the Box as well as the Engine as opposed to splitting them?
See attached pics of info from the two Gearboxes. Numbers look much the same yeah….
Thanks.
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 15th Aug 2023 9:02 pm |
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Trailered Movements
Member Since: 16 Jan 2020
Location: East/West Sussex Coast Borders
Posts: 1200
  
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Yes, the engines and boxes are the same, as long as it's a 6 speed for a 6 speed, or 8 for an 8.
Dave 2011 Discovery 4 Commercial SDV6 (Gone)
2010 RRS TDV8 (Gone)
1980 OBLIC 4.0ltr Range Rover (went a long time ago)
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| 15th Aug 2023 9:09 pm |
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Pete K
Member Since: 15 Jan 2016
Location: GL
Posts: 10699
 
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You will need to program the vin number into the gearbox using a gap iid and help of the support team. Otherwise it will be stuck in 3rd gear
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| 15th Aug 2023 9:22 pm |
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Last Boy Scout
Member Since: 12 Apr 2019
Location: Ayrshire
Posts: 140
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Oh....Sounds promising....kinda... 
Can you tell from the numbers on the box if it's 6 or 8 speed?
Also...does it need to be the Genuine LR Tool or can any Code Reader Type tool do it.... my mate runs a local Garage and he's been able to do Steering Cal, etc in the past....
Thanks guys  2005 D3 HSE
2010 RRS TDV6
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| 15th Aug 2023 9:31 pm |
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Trailered Movements
Member Since: 16 Jan 2020
Location: East/West Sussex Coast Borders
Posts: 1200
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6 speed has a gear lever, 8 speed a rotary selecter.
Similar years will tend to be like for like.
Dave 2011 Discovery 4 Commercial SDV6 (Gone)
2010 RRS TDV8 (Gone)
1980 OBLIC 4.0ltr Range Rover (went a long time ago)
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| 15th Aug 2023 10:00 pm |
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kajtzu
Member Since: 10 Aug 2017
Location: Helsinki
Posts: 6760
 
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The AH22-7000-CG (or -CH) are Land Rover engineering part identifiers (not sure what else to call them in English). First letter means model year that the part was introduced, A means 2010, B means 2011, etc. works also with D3s, 5H22 would be, well, 2005. No idea what the Hxx signifies, best guess is it is some kind of category.. 7000 is the callout number you see on drawings. Like, if you happen to go to https://new.lrcat.com/#!/12128/41216/44190/3453/44209 you might notice that its callout is 7000… The last two letters indicate some kind of variant. I’m reasonably sure these can be found in JLR’s EPC system but unfortunately I do not have access to it.
The 1068 401 377 is the part number ZF (the manufacturer) assigned. From ZF perspective they’re the same part. The first four digits signifies the main part list. It’s ZF’s way of saying “it belongs to this family”.. so I guess it means that all 6HP26 (at least) parts start 1068. I think the number you see is the clump of aluminum, not the whole “system”. Line underneath identifies the type of metal (alloy), in this case AlSi9Cu3(Fe).
Perhaps someone else has the rest of the secret decoder ring 
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| 15th Aug 2023 10:27 pm |
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Last Boy Scout
Member Since: 12 Apr 2019
Location: Ayrshire
Posts: 140
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The plot thickens.
Thanks 2005 D3 HSE
2010 RRS TDV6
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| 15th Aug 2023 11:30 pm |
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Last Boy Scout
Member Since: 12 Apr 2019
Location: Ayrshire
Posts: 140
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Great info by the way....would love to know what secret scroll you uncovered that from...
 2005 D3 HSE
2010 RRS TDV6
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| 15th Aug 2023 11:31 pm |
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Last Boy Scout
Member Since: 12 Apr 2019
Location: Ayrshire
Posts: 140
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Trailered Movements wrote:6 speed has a gear lever, 8 speed a rotary selecter.
Similar years will tend to be like for like.
Dave
Ah right ideal... I didn't see the D4 it came out but might just risk it for a biscuit..... what's the worst that can happen eh.....  2005 D3 HSE
2010 RRS TDV6
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| 15th Aug 2023 11:57 pm |
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Last Boy Scout
Member Since: 12 Apr 2019
Location: Ayrshire
Posts: 140
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Trailered Movements wrote:6 speed has a gear lever, 8 speed a rotary selecter.
Similar years will tend to be like for like.
Dave
Any way of telling by looking at the boxes? I didn't see the D4..... 2005 D3 HSE
2010 RRS TDV6
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| 16th Aug 2023 2:37 am |
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Pete K
Member Since: 15 Jan 2016
Location: GL
Posts: 10699
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The 6spd with have 6HPxx cast into the metal chassis somewhere
To program vin u need £500 gap tool. Or get a dealer to do it.
If you know the existing gearbox is good, can’t you just use it?
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| 16th Aug 2023 4:39 am |
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Last Boy Scout
Member Since: 12 Apr 2019
Location: Ayrshire
Posts: 140
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Last Boy Scout wrote:Trailered Movements wrote:6 speed has a gear lever, 8 speed a rotary selecter.
Similar years will tend to be like for like.
Dave
Any way of telling by looking at the boxes? I didn't see the D4.....
Ok cool. I'll take a look.
Thanks 2005 D3 HSE
2010 RRS TDV6
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| 16th Aug 2023 9:00 pm |
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