WARNING: FREELANDER SPARES VCU's

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early FL:
rear diff is 4.200 (petrol) 3.647 (diesel)

late FL: 3.182 td4 manual, 2.91 td4 auto, 4.20 K series, 3.66 kv6

IRD is a bit complex
IRD to IRD countershaft 0.828:1
IRD countershaft to front driveshaft 1.762:1
IRD countershaft to propshaft 0.553:1
IRD ratios (late) td4 + K 1.458:1
KV6 1.351:1
early IRD same as late k for all engines

* All according to manual * which I'm not certain I beleive. Cant find a TSB about the rear diff change, though I can find diff part numbers for early and late versions

So drive comes in, and multiplies up to IRD countershaft. Then ratios output to front shafts, and propshaft with the ratios listed. Which makes it all a bit daft, if thats true
So 1.458 = 0.828 x 1.762

The weird thing is, according to the internet:
"They're all 3.21, except some early ones which were 3.19"
And Ashcroft only list two part numbers - early & late, late having beefier bearings.
 
it's not a diff lock

No it's not, it's a limited slip diff disguised as a vcu. So the greater the slip, the more heat generated the less slip allowed to the point of virtually locking, transmitting permanent drive to the rear wheels then it'll cool allowing slip again as traction is regained!
 
No it's not, it's a limited slip diff disguised as a vcu. So the greater the slip, the more heat generated the less slip allowed to the point of virtually locking, transmitting permanent drive to the rear wheels then it'll cool allowing slip again as traction is regained!

:)
 
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