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David Henderson
TryHard
Nsw
TT

Posts: 337
Reg: 08-2007

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Tuesday, February 12, 2013 - 11:58 am, by:  David Henderson (Hendo)

I don't have great pics but I'll explain it.

The voids in the rear diff support bushes, diff ear bushes and tailshaft donut allow movement. I used Sikaflex 227 to fill the voids (after a thorough cleaning)

The Sika 227 has a similar flexibility to the stick rubber, and sticks very well. It is often used to repair bushes and engine mounts- the web has loads of examples of it.

There's a few tricks to doing it though. Because 227 is a humidity cure polyurethane sealant (unlike standard silicone)it sets faster in wet/ humid weather. The thickness of applied filler really affects cure time. I did the job in halves- filled one side of the rear diff mounts one day, waited 2 days, then did the other side.

It takes a while to do properly (cure times and removing the diff) but is well worth it. No more tramp for me :-)

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