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| | | Forums66 Topics128,187 Posts1,057,211 Members48,465 | | Most Online14,466 Apr 26th, 2026 | | AD Chevy Trucks Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
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on the Internet for over 30 years! and not clogged down with Ads! Again, thanks! | | | | Joined: Mar 2017 Posts: 6 New Guy | | New Guy Joined: Mar 2017 Posts: 6 | Hi guys just jumped into the brakes on my 1950 3/4 ton and ran all new lines and new master cylinder, I was going to try and take it for her 1st spin in 30 + yrs and knock some dust off of her and see if the wheel cylinders on there still might work? Worth a shot ? I ran into a snag with the rear wheel cylinders semi frozen and corroded and figuring the front will likely be similar. I've been looking napa,autozone etc for a quick turn around but no luck, went to classic & ecklers and all I keep getting is 51-55 and not specific for 3/4 ton . The wheel cylinder that are coming off are front 1 1/4 & rears are 1 3/8. Wasn't sure if anyone could pass on some good product info & knowledge. Greatly appreciated for the help!
CJ
| | | | | Joined: Mar 2010 Posts: 843 Shop Shark | | Shop Shark Joined: Mar 2010 Posts: 843 | "The wheel cylinder that are coming off are front 1 1/4 & rears are 1 3/8."
CJD,
On my '36 pickup the front and rear wheel cylinders are different sizes but they appear to be machined from the same casting. So you can probably make "new" 1 3/8" cylinders by boring the 1 1/4" cylinders in a lathe. Just as in boring an engine cylinder the last cut will be very light to give a nice surface and the final surface can be made with a wheel cylinder hone. I'd give that a try.
I encountered stuck wheel cylinder pistons when redoing the brakes on my wife's 1961 Mercedes 190SL. Penetrating oil made from a 50%-50% mix of acetone and atf and a big clamp were able to removed them no sweat. That may be worth a try.
Ray
| | | | | Joined: Oct 2016 Posts: 916 'Bolter | | 'Bolter Joined: Oct 2016 Posts: 916 | I admire your courage to replace that whole system- every single item on my 3/4 ton brake system was toast (including the drums), and that contributed to my decision to swap out the rear axle and change to modern brakes all around...those 3/4 ton brake parts aren't cheap! Jim Carter has the wheel cylinders, at Oldchevytrucks.com
~ Dave 1950 Chevrolet 3600 3/4-ton with 261 engine & T5 Transmission | | | | | Joined: Sep 2012 Posts: 222 'Bolter | | 'Bolter Joined: Sep 2012 Posts: 222 | Chev's of the 40's also has them. Dave | | | | | Joined: Mar 2017 Posts: 6 New Guy | | New Guy Joined: Mar 2017 Posts: 6 | Thanks guys appreciate the guidance, And I think adventually NorCal Dave I'll probably do the rear swap later down the road , but I want to experience a true 1950 in action. Little ruff, not a speed demon, it will stop but not fast , but she''ll be fun to drive around and she what she made of. Thanks again
CJ
| | | | | Joined: Jul 2015 Posts: 18 New Guy | | New Guy Joined: Jul 2015 Posts: 18 | I have purchased these from Autozone, if any stores are around by you. I have had then shipped to store and I then pick them up. Much less costly then online. They usually have them available in less than 24 hrs. | | |
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