There are different brake calipers-designs used on the different vans over the years. So to best answer we would need to know the year and sometimes it is helpful to know if you have Girling or ATE calipers. For the later "floating" single piston calipers stick can either be the hydraulic, (piston part), or the guide pins. For squeaking with the brakes not applied it may not be the caliper at all. May just be the pads are either loose or binding or the anti-rattle shims, springs, clips, etc. are missing. 

Calipers with stuck pistons are usually due to corrosion between the piston and caliper bore. The usual fix here is honing and fitting a new piston and sometimes needing boring and a sleeve. Disassembly and inspection. 

Dennis

-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of B Feddish
Sent: Saturday, June 25, 2016 2:30 PM
To: vanagon@GERRY.VANAGON.COM
Subject: Sticky brakes

My right side brake caliper is dragging and making a scraping sound.  Should I just replace it or is the rebuild kit easy enough to do?

Thanks,
Bryan

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