[Phil Waterman]

Hi Rod

I've never seen nor heard of rebuild kits for these boosters. Now having said that over the years I've taken apart cleaned and put back in service 3 of these units. The manual has good discription of how to disassemble with out damage to parts.

Replacements for things like the bellows both large and small can be source from modern applications, example the large bellows can be made from shock absorber covers, and the small one motorcycle cable boots.

One tip, you will need a vacuum source ( preferably electric vacuum pump) and vacuum gauge to do any bench testing of the unit. Testing the units in the truck is not practical as you will not find the vacuum leaks. When bench testing be careful were you hold the actuator linkage these units at 14 inches of vacuum move with great force and quicker than you may expect.

There have been several good threads on this topic which you may find useful if you have not already read them.

Keep us posted on your progress and your questions.

Note that you don't have the manual, from time to time they have been available online in sections. Unfortunately the online link to the manuals on my Web page is no longer good. I'll look to see if l have a PDF version that can be posted. If you can’t find the brake section let us know somebody can email them to you

Cheers Phil