axle & diff refurb questions

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farmershort

farmershort

Well-Known Member
Posts
1,067
Location
West Berkshire
Hi All,

I have my 300tdi 110 donor vehicle sat on the drive, whilst I wait for my v8 spec galv chassis to arrive. One of the first set of components I can transfer is the axles. Given that i'm going to the effort and expense of trying to build my perfect landrover from scratch, I'd like to know how to get the axles & diffs back to tip-top condition.

The big drawback with my donor is that it has done 272,000 miles. At this mileage is new half shafts a good idea? What level of wear & tear should I expect in the diffs? Obviously it'll be getting new suspension, brakes, maybe even wheel bearings whilst I'm at it... what else should I be thinking of when at the axle job?

I also thought about de-rusting the casting with electrolysis (in a big bucket).... anyone bothered with this? a bit OTT?

It will end up as a 275bhp (ish) 4.6L v8 (or at least that's the current plan), so do let me know if you think anything needs strengthening for that level of power.

Thanks

Adam
 
re furb axles to the cost you can afford , do it now then u know its right new swivel balls ,and swivel btrgs pin etc ,wheel brgs and all seals ,new half shafts and drive flanges are cheap ,work shop manual will give diff end float tolerances ,i cleaned the axle case and reusable parts with a wire brush or 3 lol on a grinder for my rebuild if u have time soak rusty stuff in vinegar shifts rust a treat ,you can recon youre calipers electro plate etc cheaper than the cost of one pattern part caliper ,check out my thread REBUILDING MY 90
 
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check cv joints they may well be worn with that sort of mileage post piccys we all love piccys :)
 
Thanks gatso... Project thread with full compliment of pics will go up as soon as I actually do something! Apart from endlessly asking questions on here that is!
 
Forgot to mention, I won't be lifting it, adding a snorkel, adding a winch, or doing anything that could be described as greenlaning. As such, am I right in thinking I don't need the Ashcroft pinned diff's and heavy duty half shafts?

It'll be a commuter wagon, a small holding wagon, and for trips on high days and holidays.
 
farmershort said:
Forgot to mention, I won't be lifting it, adding a snorkel, adding a winch, or doing anything that could be described as greenlaning. As such, am I right in thinking I don't need the Ashcroft pinned diff's and heavy duty half shafts?

It'll be a commuter wagon, a small holding wagon, and for trips on high days and holidays.
Click to expand...
presumably rear will be a salisbury axle which apart from been extremely beefy is a 4 pin diff as std
 
Unless you know the history for the vehicle you need to asses the condition of the components on the vehicle rather than assuming it will need new diffs etc. While the donor may have 272k on the clock the previous owner may have fitted reconditioned / new parts in the recent past.
 
Kwakerman said:
Unless you know the history for the vehicle you need to asses the condition of the components on the vehicle rather than assuming it will need new diffs etc. While the donor may have 272k on the clock the previous owner may have fitted reconditioned / new parts in the recent past.
Click to expand...
True. I just don't know if I trust myself to be judge of that at this stage in the project. A project thread with pics will help with that though.
 
If you're going to run big power then it may be senseable to fit hd shafts or the like.
Rear being salibury is better mind.
I've fitted a 6bt to my 90 and will be fitting hd shafts etc when funds allow. (Need it on the road first mind)
But then I guess it's torque that breaks things, and I haven't even got salisbury rear either :eek:
Should be fine if driven with a little mechanical sympathy :eek:
 
6bt..... Mmmmmmmmm!

I guess the rv8 is substantially lower torque than a 6bt! I need to check out the torque figures though, and see how they compare with other fendy engines.
 
farmershort said:
6bt..... Mmmmmmmmm!

I guess the rv8 is substantially lower torque than a 6bt! I need to check out the torque figures though, and see how they compare with other fendy engines.
Click to expand...

Aye, I have no idea what sort of torque petrol engines put out to be honest.
6bt apparently has 450ft/lb in standard form.
 
aaronmorris said:
Aye, I have no idea what sort of torque petrol engines put out to be honest.
6bt apparently has 450ft/lb in standard form.
Click to expand...
Lovely stuff! I've seen 4.6 rv8 torque figures around 230 -280 ft lbs... So somewhere in that range.

I think the td5 is something like 230 ft lbs, and the latest tdci is something like 260 ft lbs. Not sure if they have the same strength half shafts as the 300tdi though. 300tdi is what... 200 ft lbs? But the r380 itself is supposed to be good for 300bhp and the associated torque increase, so perhaps the rest of the running gear is too.
 
I would strip the axels down that way you can see what needs doing.
Then you could get the axle case sand blasted and painted
nothing nicer that sticking everything back together
will also be a great learning curve


Good luck with the rebuild
 
Thanks greyhair. I like the idea of getting the casings blasted... I suppose soda might be the safest.

There'll be no shortage of learning curve for me during this :)
 
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