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The LR3 and RR sport Differential Technical Info Thread


Hybrid_From_Hell
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^^

That just about covers it !

As per my other posts I am hunting down info to see about the reality of being able to offer PROPERLY rebuilt Front and Rear Differential units for LR3s at sensible money.

I have been digging about like a terrier on speed icon_lol.gif

I thought it would be good to start a new thread with ALL the info I find and develop so if peeps need a bit of info to do themselves a DIY fix its available free.

So, this will be a thread that I will add to and tweak, if peeps can help with extar input feedback correctyions of errors and or ommissions them it will defo help me but for others in the future here and on the www...

So, so far I have found out :

FRONT Diffs
TAG500140ST TDV6 DISCOVERY
TAG500160ST V6 & V8

REAR Diffs
TVK500440ST TDV6 DISCOVERY
TVK500420ST V6 & V8

Front Diffs Part Numbers so far

post-22-0-22396900-1424255838_thumb.png

1 Bolt FC114206
2 Bolt TYP500090
3 Bolt KYG000230
4 Nut FY110056
5: OIL SEAL - DIFF OUTPUT SHAFT - L/R DISC 3 (FRONT)(REAR) LR019019
6 Bolt KYG000240
7 Bolt TYP500100
8: HOSE - BREATHER TAP500130
9: BUSH - DIFF HOUSING - L/R DISC 3+R/R SPORT (FRONT DIFF) KQB500151
10: BUSH - DIFF HOUSING - L/R DISC 3+4 (FRONT+REAR DIFFS) KQB000133
11: BUSH - DIFF HOUSING - L/R DISC 3+4 (FRONT DIFF) KQB000152
12 Mounting Unit TAU500070
13: DIFF BRG KIT - L/R DISC 3+R/R SPORT (FRONT) LR006011#
13: DIFF BRG KIT - L/R DISC 3+R/R SPORT (FRONT) TAG500500#
13: AXLE ASSY FRONT (RECO) - 3.73 RATIO LR009478
13: AXLE ASSEMBLY - FRONT AUTO - D3 V8 3.73 RATIO TAG500160
13: AXLE ASSY FRONT (RECO) - 3.54 RATIO LR006011
14: O RING - DIFF HOUSING - L/R DISC 3+4 (FRONT DIFF) TYX500040
15: Oil Seal Diff Output Shaft TZB500050
16 SUPPORT TUBE TAU500080
17 No idea !! LR019450
18: PLUG - DRAIN - DIFF - L/R DISC 3+4+R/R SPORT (FRONT) TYB500080
19: PLUG - FILLER TYB500060

Struggling a bit more with the Rear so far.

Also RR Sport are as follows and are a part number match :D

FRONT Axle
TAG500140ST V8 SUPERCHARGED & 3.6 V8 DIESEL
TAG500160ST V8
REAR Axle
TVK500440ST V8 SUPERCHARGED & 3.6 V8 DIESEL
TVK500420ST V8

Seems there could be a possible issue with the Drive Flanges as these are Not Sold Seperately (Thanks LR really good of you) thats not a show stopper I could get one drawn up in Solidworks and CNC machined ground and polished ..

So, anyone go the same sort of info / links etc for rear diffs.

Can someone comment on what you can / do / can't get open diffs vs locking diffs for the above models please ?

More the merrier !

Nige

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WTF is an e-diff ???????????????????????????? :blink::blink::blink::blink::blink::blink::blink::blink::blink::blink::blink::wacko:

Hmmm - the optional electronic locking rear diff that is an option on the RRS and D3/LR3. Is on the standard list of options for these vehicles - read about them on the Disco3UK forum.

There are substantial differences in the diffs - they are electronically controlled and have larger drive shafts and use different diff oil.

Maybe you need to research standard D3/LR3 rear diffs a little more before embarking on this project.

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  • 1 year later...

Hi Nige,

How did this go? I now have a D3 V8 which needs the rear diff rebuilding, are you interested?

Re your questions above the issues I have found that cause me issues are the availability of the pinion shaft crush tube and the clam shell O ring.

Petrol ratios for the V6 (US) and V8 are different as are the RR sport V8 and V8 Supercharged.

Marc

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