Hydrovac Special Tools

Topics about the engine, transmission, transfer, axles, or wheels/brakes of GMC 2 1/2 ton trucks.


Hydrovac Special Tools

Postby pfarber » Tue Nov 13, 2007 7:22 pm

Here are some special tools for rebuilding a series I, II or III 'vac.

Pics are worth a thousand words!

Back in the day cyanide was used to harden metal, and increase its wear resistance. There are several modern day equivalents, but unless you are gonna run a production shop, bare metal should do.
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