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[Miggy24]

Hi all does anyone know how to convert rear drums to discs

[Jimbob]

on what?

[Miggy24]

on a astra

[henryd]

easiest way would be with a donor vehicle on hand for all the parts required and you may also need the master cylinder as well

[2woody]

donor vehicle is best way.

complete system change is the only option unless you happen to be a brake designer 

make sure you have the rear pressure-limiting valves, too otherwise you'll have agoodly dose of rear-end lock-up / swapping ends action to cope with.

[cem_devecioglu]

agreed.. done it in the past.. a complete rear system is the way to go..

also I must note the rear brakes will work fully only if there is enough weight otherwise they will work %50 ( I assume also Astras have some brake pressure limitor on the rear)

[Andy B]

Hi all does anyone know how to convert rear drums to discs

What are you hoping to achieve? The disc/drum set up on my Astra works fine as did the same set up on the Astra SWMBO had written off.
I can see you needing 5 stud wheels too after your conversion   

[pedroMV6]

Hi all does anyone know how to convert rear drums to discs

What are you hoping to achieve? The disc/drum set up on my Astra works fine as did the same set up on the Astra SWMBO had written off.
I can see you needing 5 stud wheels too after your conversion   

Wot 'e said ^^^^^^
It's all too easy to "overbrake" the rear of a car.