Diff Mounts

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djw113uk
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Diff Mounts

#1 Post by djw113uk » Sun May 26, 2013 9:50 pm

Does anyone know why the Triumph 2000 MK1, all estates and the stag has the wide diff hanger, but the MK2 saloon had the narrower mount? Surely the wider mount would be more rigid?

The bolts on my saloon are not in great health - okay, but could be better, and after investing in a BMW Diff it is almost impossible to mount on a saloon with narrow hangers. - There just isn't room for rubbers to insulate from vibration.

I intend removing the narrow mounts and installing estate style wider ones - can anyone see a problem with this?

- The rear cross member is the same. I will add reinforcing to mount the head of the bolt too. Why, seeing as Triumph often recycled parts did they re-design the diff mount just for a MK2 saloon?

If I ever wish to revert to standard I can fit the original diff back in - I would just need to use an estate or stag hanger.

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Andy Thompson
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Re: Diff Mounts

#2 Post by Andy Thompson » Mon May 27, 2013 5:13 am

No idea except the Mk2 has better oil capacity and less parts to make it (hence cheaper) - pity they didn't keep the Mk1 spacing.
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djw113uk
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Re: Diff Mounts

#3 Post by djw113uk » Mon May 27, 2013 8:38 am

Oil capacity is a good point - but with BMW diff that isn't applicable - phew!
Thanks

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Alan Chatterton
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Re: Diff Mounts

#4 Post by Alan Chatterton » Mon May 27, 2013 10:13 pm

Cost I guess. MkI and estate is two pieces and 4 studs and 4 nuts.

MkII saloon is one casting, less cost, less loss ( note I didn't mention profit as they never made any during BL days!! )
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CAR
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Re: Diff Mounts

#5 Post by CAR » Mon May 27, 2013 10:19 pm

AFAIK the WCR cars (mk2) all had the wider mk1 diff mount, so the comps dept must have felt it offered better/stronger location.

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djw113uk
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Re: Diff Mounts

#6 Post by djw113uk » Mon May 27, 2013 10:49 pm

So far there is no reason not to "convert" then? After removing the contents of the boot I was pleased to see all looks the same as in the estate in that area! Temporary studs installed.

Now for the careful removal of the old mounts... Are the MK2 saloon studs just welded inside the small projection which is welded on, or do they go right up into the lower skin of the box section above?

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Alec
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Re: Diff Mounts

#7 Post by Alec » Tue May 28, 2013 5:53 am

Hello DJW,

they go through the box section and welded top and bottom, making it a difficult job to replace them if required.

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Re: Diff Mounts

#8 Post by Richard B » Thu Jul 11, 2013 9:32 am

Yes there is a secondary bracket inside the box section that has the upper part of the stud welded to it.

Great fun changing these! :roll:
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