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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: Mar 2010 Posts: 79 Wrench Fetcher | | Wrench Fetcher Joined: Mar 2010 Posts: 79 | My 48 Loadmaster has a 2 speed rear.I have removed the valve for cleaning. It is made by Bendix Corp.Does anyone know of a rebuild kit or possibly a rebuilt unit.Also does the unit on the axle have a rubber diaphram or leather and can these be rebuilt .
Thanks
JMH | | | | | Joined: Jan 2005 Posts: 1,602 Shop Shark | | Shop Shark Joined: Jan 2005 Posts: 1,602 |
| | | | | Joined: Sep 2008 Posts: 226 Shop Shark | | Shop Shark Joined: Sep 2008 Posts: 226 | I to have the same problem but, I have not really checked it out. I do know that I called two places and they said they do not have kits. I have not yet tried Jim Carter Truck parts as I am not ready yet. but, If you find a kit for both please let me know.
Do keep in mind that the Chevrolet and GMC valves seem to be diffrent. I have a GMC and it is missing the correct set up on the fire wall. So, If someone has a complete unit let me know. It is possible that the unit I have is wrong. I do know that the way the GMC mounts compared to the Chevrolet design is Diffrent.
Poets Seat AutoAppraisals, Parts, ServicePast: General Motor's Master Technician Member: Northeast Chevy/GMC Truck ClubPhone Number: 413.774.5856 Collector of: 1951 Army Chevy Burb barn door,53 GMC COE,two 1934 Chevy Truck,1935 Chevy Army Truck.1950 Gmc Suburban clamshell these are just my chevy/gmc trucks.
| | | | | Joined: Feb 2010 Posts: 476 'Bolter | | 'Bolter Joined: Feb 2010 Posts: 476 | I'm also looking for a vacum valve that shifts the 2 speed rear end on my 46 COE ,it's mounted in the middle of the dash with 2 screws with a spring on the back that shifts a small gear box on the back of the speedomiter, let me know if you find a source | | | | | Joined: Apr 2005 Posts: 1,107 'Bolter | | 'Bolter Joined: Apr 2005 Posts: 1,107 | it's mounted in the middle of the dash with 2 screws with a spring on the back that shifts a small gear box on the back of the speedomiter, let me know if you find a source if the shifting lever is all you need look in a yard for a big truck that still has one that looks like yours. if you do find one take everything you can get your hands on for that system as spares should you need anything in the future. | | | | | Joined: Feb 2010 Posts: 476 'Bolter | | 'Bolter Joined: Feb 2010 Posts: 476 | I,m looking for a whole new valve that bolts near the center of the dash on my 46 COE. They don,t look rebuildable, I,ve been given a part # 339840 | | |
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