[urq] cast brake booster .

[racingiron at comcast.net]

Patrick Carlier wrote: 
> And I found a badly damaged spring , stuck around the 
> main spring . 
> It looks like it must have been half an inch in dial . 
> Thin gauge , 1 mm maybe . And 8 or 9 windings . 
> 
> Problem is I haven't got a clue where it came from 

Here's a picture of a dismantled iron booster with the parts in the order of assembly: 
http://home.comcast.net/~racingiron/layout.jpg 

Eric R. 
'86 urq 
'92 urS 
'93 urS