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Jul 21st, 2025 | | | | Joined: Jun 2017 Posts: 11 New Guy | | New Guy Joined: Jun 2017 Posts: 11 | Just started on restoring my dads 6400. Need anew master cylinder and front wheel cylinder. I tried searching. I think the master cylinder is mc9220. Is this correct? Does anyone have a part number for the front wheel cylinders?
Also, I believe the grills on these ar the same as the 3100s, is tantamount correct?
1948 6400
| | | | | Joined: Jan 2017 Posts: 50 'Bolter | | 'Bolter Joined: Jan 2017 Posts: 50 | Check with Jim Carter Truck Parts, they are one of the few places I've found that carry 1 1/2 - 2 ton brake parts: http://www.oldchevytrucks.comMaster cylinder is item #ME166 Front Wheel Cylinder is item #ME130
1953 Chevy 3100 Pickup
1954 Chevy 6400 Grain Truck
1957 Pontiac Transcontinental
1958 Buick Limited 2 Dr
1968 Ford Galaxie 500
1974 Ford F-350 Flat Bed (Dump Bed), former Pioneer Seed Truck.
"Beer is proof that God loves us and wants us to be happy." ~ Benjamin Franklin
| | | | | Joined: Jan 2015 Posts: 910 'Bolter | | 'Bolter Joined: Jan 2015 Posts: 910 | Rock Auto had parts for my 46 2 ton.
And good prices. Jeffrey | | | | | Joined: Jun 2017 Posts: 11 New Guy | | New Guy Joined: Jun 2017 Posts: 11 | Rock Auto has master cylinder as Raybestos MC9220 and wheel cylinder as WC 4358. I think these are correct. Can anyone confirm?
Thanks.
1948 6400
| | | | | Joined: Aug 2009 Posts: 311 'Bolter | | 'Bolter Joined: Aug 2009 Posts: 311 | Red75Bronco why not rebuild the Master Cylinder, and wheel cylinders that you already have? I rebuilt all of my wheel cylinders and my master cylinder on my '48 Loadmaster and had no problems. The most difficult part for me was getting the tension against the drums correct. By the way you should probably replace the rubber brake lines as well.
| | | | | Joined: Jun 2017 Posts: 11 New Guy | | New Guy Joined: Jun 2017 Posts: 11 | I need to get it the 150 miles here first. I can deal with the master cylinder, but the left front brake I cannot bleed. I have fluid to the cylinder, but nothing comes out of the bleeder even when completely removed. I need to get out there and take the wheel cylinder apart and figure out what's wrong. I would like to have the parts before I go though. Maybe I will get both the rebuild kit and the new and then return what I don't need.
1948 6400
| | | | | Joined: Jan 2013 Posts: 1,384 Shop Shark | | Shop Shark Joined: Jan 2013 Posts: 1,384 | If you have removed the bleeder and no fluid comes out, it's far more likely that it is a line or hose issue.
The bleeder is located right above the brake line inlet. The condition of the cylinder would have very little affect on the fluid flowing through. | | | | | Joined: Jun 2017 Posts: 11 New Guy | | New Guy Joined: Jun 2017 Posts: 11 | When I loosen the line, I have fluid. I need to pull the when'll off.
1948 6400
| | | | | Joined: Jan 2013 Posts: 1,384 Shop Shark | | Shop Shark Joined: Jan 2013 Posts: 1,384 | It will be interesting to see what's inside the cylinder | | | | | Joined: Jun 2017 Posts: 11 New Guy | | New Guy Joined: Jun 2017 Posts: 11 | I don't understand it either. It has been sitting for 10 years. The other cylinders are fine.
1948 6400
| | | | | Joined: Jun 2017 Posts: 11 New Guy | | New Guy Joined: Jun 2017 Posts: 11 | Brake line plugged or swelled. Couldn't get anything through it.
1948 6400
| | | | | Joined: Sep 2017 Posts: 8 New Guy | | New Guy Joined: Sep 2017 Posts: 8 | I replaced the master cylinder on my '51 6400 with:
Dorman M9220 New Brake Master Cylinder ordered on Amazon.com
$83
'64 Ford F-100
'51 Chevy 6400
| | | | | Joined: Jun 2017 Posts: 11 New Guy | | New Guy Joined: Jun 2017 Posts: 11 | That is the one I use has been working great.
1948 6400
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