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| | | | Joined: Feb 2012 Posts: 61 Wrench Fetcher | | Wrench Fetcher Joined: Feb 2012 Posts: 61 | When I pull the wheels for new rubber, I want to replace the wheel cylinders. I believe there are two sizes, 1 1/2, and 1 1/4. Without disassembly, does anyone know what size they would be? It's a dump, but don't want to assume the larger. | | | | | Joined: Nov 2005 Posts: 6,100 'Bolter | | 'Bolter Joined: Nov 2005 Posts: 6,100 | Hy abxtc, according to my GM parts book all the trucks larger than one ton use the same 1 1/2" rear wheel cylinder. Raybestos p/n WC3677 $64.79 at RockAuto, hope that helps. | | | | | Joined: Dec 2003 Posts: 1,144 'Bolter | | 'Bolter Joined: Dec 2003 Posts: 1,144 | Rock auto also has the rebuild kits WK8 and WK37. Got a master cylinder at local parts house Don't recall the part number.front wheel cylinders are 1 1/4"
Last edited by kb3csw; 02/15/2012 12:20 PM.
| | | | | Joined: Jan 2000 Posts: 2,074 'Bolter | | 'Bolter Joined: Jan 2000 Posts: 2,074 | You also could have the cylinders re-sleeved, which is usually cheaper especially if these are rare and difficult to find.
best of luck | | | | | Joined: Dec 2003 Posts: 1,144 'Bolter | | 'Bolter Joined: Dec 2003 Posts: 1,144 | The raybestos wk37 included new pistons for rear something lacking in last repair kit I got from Jim Carter. The wk8 for front did not include pistons | | | | | Joined: Feb 2012 Posts: 61 Wrench Fetcher | | Wrench Fetcher Joined: Feb 2012 Posts: 61 | Wow! Thanks again, guys!
Consensus is:
1 1/4 front cylinder
1 1/2 rear cylinder WC3677
Tom | | | | | Joined: Feb 2012 Posts: 61 Wrench Fetcher | | Wrench Fetcher Joined: Feb 2012 Posts: 61 | Hi all! Replaced the wheel cylinder yesterday,I going to have so much FUN working on this beast!
Thanks for the pointers to get me started.
Tom | | |
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