Diff. Mounting cracking

[68vitesse]

While under my MK1 Vitesse yesterday noticed that the top front rubber diff bushes had quite deep cracks in them. To change them requires removing part of the exhaust and detaching the diff. from the suspension and drive train. This is not a five minute job so was thinking of using polybushes for the diff, is it worth the extra cost and will it result in more noise?. The other thing to consider is the poor quality of a lot of rubber based components these days, interested in others experience.

 

I had the diff. out some years ago and reassembled with a lot of copperslip so do not expect rear mounting bolts to be rusted in the rear bushes.

 

 

Regards

 

Paul

[Colin Lindsay]

Yes, I'd recommend a one-time replacement of Polybushes. The red ones being harder may give more road noise - but less flex - than the blue ones. I've used blue (actually orange ones from a different supplier) - for years with no need to replace.

[Pete Lewis]

you can with some fiddle and levering get them in  with the diff and shafts etc still attached 

   its getting the diff high enough and not have the studs at nasty entry angle is the challenge

 

Pete

[Clive]

I will be honest, every diff bush I have seen has been in good condition. So I am surprised about yours cracking, unless they got contaminated at some point. I have always found the rubber to be fine, though current car has red polybush as I wanted handling more than quiet. However, no notice difference either way. Just make sure you buy good quality, the club shop, Chris witor or canleys would be my choices.
As to fitting, worth a try in situ, you should quickly find out if it will work or not.

[Colin Lindsay]

These are there sort of ones I'm using at present:

 

Triumph Herald Vitesse GT6 Spotfire Poly Polyurethane Differential Mount Bushes

 

although for only £2 cheaper you can buy second-hand ones:

 

TRIUMPH Herald 1200 13/60 Differential Mount Rubber (pair)Fit 1961 - 1971 (0184) (Fits: Triumph Herald)