Convince me to buy pattern parts

It was a first for me too. Horribly grooved, and for once the argument that it increases the surface area really wouldn't wash.

That was never true in the first place, mind you I used to think the same many moons ago!

We used to have loads of rouble with trailer drum brakes and the annual mot, in the end got shoes and drums profiled to each other, better but still hassle, and trailer drums brakes today are still pants even when working correctly.
 
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