Rob
Spac
There's no doubt that the AWD manual bits have value, but I'm not sure if $2k really is a good price for the car with the faults listed.
Rob
I'd pay something for it.. an awd c70 would be nice. $2k is too much but.
GUE555
I have found out more about this, abs light is on, no tail shaft so is currently fwd, no power steering due to leak? and noisy pump, needs tyres.
Rob
What is it that normally goes wrong that would be remedied by removal of the tailshaft?
egads (she/her)
Angle gear/transfer case.
Rob
Okay. And the auto one is different?
Ex850R
The viscous coupling is in the rear , bearings and the shaft gears. I don't know why cos in USA they don't seem to have or talk about that stuff but do say to use S/V60/70r tailshaft , unless the bevel gear on the gearbox is no good , maybe worth Google search or Jonbot to answer.
Ex850R
That thread on TB 850 awd made from xc talks about volvo parts available , brackets etc , new , I wonder if still available. Still , $2K is way too much
Ex850R
Ahh , the angle gear is maybe why the layer R shaft is used?
egads (she/her)
Pretty sure manual and auto is the same but R is a bit beefier.
Spac
The viscous coupling on the front of the rear diff is the weak point. They die when people fit different sized tyres F&R (and different brands in the same advertised size can be enough to do it).
The tailshaft is a seperate issue, but a fairly common one, simply because Volvo Australia won't sell you tail-shaft parts - only a complete tailshaft for over $2k...
FCP couldn't supply us with the CVs we wanted - three goes all gave us CVs that were too large (spline count and PCD).
Then we found that we could get the CV via the Lobro part number that's stamped into the original CV. Genuine Lobro part was ~$500 (not sure exaclty, because Buerckner gave us a friendly price through his old job).
And then, somehow, the CV lasted about six weeks...
X( x100
Our's has been FWD ever since.
Ex850R
We have to ask the US guys , geez , Lookforjoe is getting 500 odd HP and its an XC , how does his not break ?
Spac
From what I've seen, the early AWD 850s were the problem ones. The x70s (and maybe even the late 850s) weren't a problem - they are basically an M56 which can handle putting ~300kWs to the front wheels.
Considering the mushiness of the viscous coupling to the rear diff, I can't see the angle drive, tailshaft or rear diff having a particularly tough time of it. Although the viscous coupling would probably cop a beating... A front LSd would also give the rear-drive part of the drive train an easier time, too.
