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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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| | | | Joined: May 2005 Posts: 82 Wrench Fetcher | | Wrench Fetcher Joined: May 2005 Posts: 82 | On my 1949 1/2 ton, I'm converting to power brakes with the booster & master cylinder under the floor.
Due to cost concerns, I need to stay with the drum brakes front & rear for now.
Can anyone tell me what the bore size on the wheel cylinders is front & rear ?
Also, should the front cylinders be smaller bore for more line pressuer & better brake balance ?
Unrelated question - how do I change my password on this site ?
1949 chev 3100 3 window. 350hp/327/m21 4 spd, 12 bolt rear, power brakes, 3" dropped axle from Sid's. Disc brakes next.
| | | | | Joined: Jun 2004 Posts: 8,597 Riding in the Passing Lane | | Riding in the Passing Lane Joined: Jun 2004 Posts: 8,597 | If it still has the original Huck brakes it has 1 1/4 in. on the front & 1 3/16 on the rear. The front are larger for more bracking on the front.
I can't help with the password
They say money can't buy happiness. It can buy old Chevy trucks though. Same thing. 1972 Chevy c10 Cheyenne SuperIn the Gallery Forum | | | | | Joined: May 2005 Posts: 82 Wrench Fetcher | | Wrench Fetcher Joined: May 2005 Posts: 82 | Ok, so how do I tell if I have the Huck brakes ???
Brothers says the front cylinders are 1 1/2 " dia & the rears are 1 3/16"
1949 chev 3100 3 window. 350hp/327/m21 4 spd, 12 bolt rear, power brakes, 3" dropped axle from Sid's. Disc brakes next.
| | | | | Joined: Jun 2004 Posts: 8,597 Riding in the Passing Lane | | Riding in the Passing Lane Joined: Jun 2004 Posts: 8,597 | If it has the original brakes they are the Huck brakes. 1950 on back 1/2 tons used them. The huck brakes have 2 adjustments both at the top of the backing plate while the Bendix style has one adjustment at the bottom. If I was going to do a major rebuild I would change over useing 51 up parts. If they dont need much the Huck brakes will work OK.
They say money can't buy happiness. It can buy old Chevy trucks though. Same thing. 1972 Chevy c10 Cheyenne SuperIn the Gallery Forum | | | | | Joined: May 2005 Posts: 82 Wrench Fetcher | | Wrench Fetcher Joined: May 2005 Posts: 82 | Ok, Thanks. Mine have one adjuster on the bottom so they must be Bendix.
Now I can get the right cylinders & shoes.
1949 chev 3100 3 window. 350hp/327/m21 4 spd, 12 bolt rear, power brakes, 3" dropped axle from Sid's. Disc brakes next.
| | | | | Joined: Feb 2003 Posts: 452 Shop Shark | | Shop Shark Joined: Feb 2003 Posts: 452 | Ref the password, click on My Stuff at the top, then on Edit Profile. Should be an option in there.
Current fleet (subject to change w/o notice) \'49 GMC 3/4-Ton , 60 Austin Healey Frog-eye Sprite (some assembly required), 2011 Dodge Avenger, 2015 Jeep Cherokee. No, they don't all run. My other ride is a (B737)no, (B767)no, A320.... Update... was Embraer E190, now Boeing B787. Knowledge is a wonderful thing, but ignorance means you don't know you can't do something.
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