Posted by Matt Wilson [22.214.171.124] on Tuesday, April 30, 2019 at 14:32:02 :
In Reply to: Under cab power brake cylinder posted by TerryD [126.96.36.199] on Tuesday, April 30, 2019 at 14:19:04 :
I believe Greg Coffin was offering such a kit. You could try using his name and "power booster" as keywords in Phil's Archives.
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