Another 2-speed axle question
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Cargo Master
Joined: Aug 2014
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From: North Central Arkansas
Another 2-speed axle question
I am still considering installing a 2-speed axle in my '49 F4. I would like to use an electric operated 2-speed, but I want to keep my rear hubs, backing plates, drums and brakes. I have a vacuum 2-speed from a '48-'52 truck that I could use the housing from. Will the later electric 2-speed center members fit the earlier axle, if so, how late of center member can I use? If I use the complete axle, how late of an axle can I install my hubs and brakes on? I have a lead on an axle in a late 60s to early 70s F600-F700 that I might be able to get, but I don't know if it will work for me.
Thanks,
Mark
Thanks,
Mark
Logistics Pro
Joined: Sep 2014
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From: Bothell & Silverdale, WA
Are you still using the stock brakes and hubs? Do you have Dayton wheels?
You really need a parts catalog to answer all those questions, but I can tell you this: The Eaton 1350 two-speed axle was used by just about all the truck manufacturers for about fifteen years.
I'll see what I can come up with unless Number Dummy beats me to it.
You really need a parts catalog to answer all those questions, but I can tell you this: The Eaton 1350 two-speed axle was used by just about all the truck manufacturers for about fifteen years.
I'll see what I can come up with unless Number Dummy beats me to it.
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Cargo Master
Joined: Aug 2014
Posts: 2,594
Likes: 72
From: North Central Arkansas
Thank you for the reply, Bob. I am still using the stock brakes and 19.5" wheels on the stock 5 hole on 8" B.C. hubs. My brakes are all rebuilt and wheels are powder coated with good tires on them. Was the stick shift Eaton used from '40-'44 also a 1350 series or did it begin with the vacuum shift model in '45?
Thanks again,
Mark
Thanks again,
Mark
Logistics Pro
Joined: Sep 2014
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From: Bothell & Silverdale, WA
As near as I can figure, your single speed rear axle type (split housing-spiral bevel) was only used on the F-2 through F-5, and the planetary spiral bevel two-speed Eaton 1350 was only an option for the F-5, F-6, and F-8. So I'm going to speculate that your brakes and hubs won't fit to the two-speed axle housing, and definitely there is no two-speed drop in third member option for your axle housing, which would be a Timken 51524.
I'm going to play with this some more, but it looks to me like you will need a complete Eaton1350, or equivalent, assembly.
I don't think you can beat this deal:
1956 Ford F600 truck Chassis, 2 speed rear end axle | eBay
I'm going to play with this some more, but it looks to me like you will need a complete Eaton1350, or equivalent, assembly.
I don't think you can beat this deal:
1956 Ford F600 truck Chassis, 2 speed rear end axle | eBay
Logistics Pro
Joined: Sep 2014
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From: Bothell & Silverdale, WA
The original 1350's came in the early '30's with a manual lever linkage to the cab, then as you pointed out, switched to the vacuum shift in '45.
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Cargo Master
Joined: Aug 2014
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From: North Central Arkansas
Thanks, Bob. I do have the Timken axle in my truck now. I also have a complete 2-speed from a '48-'52 F5-F6 that I removed from my '47 COE. The brakes, hubs and axle shafts are interchangeable between the Timken and Eaton axles. From what I understand, I can't convert a vacuum shift center member to electric shift, so I was wondering if a later, electric shift center member would fit in my axle housing originally made for a vacuum shift center and if so, how late? If I buy a complete axle, how late of an axle would my hubs and brakes fit? What was the first year for an electric shift?
Thank you,
Mark
Thank you,
Mark
Logistics Pro
Joined: Sep 2014
Posts: 4,920
Likes: 21
From: Bothell & Silverdale, WA
From what I understand, I can't convert a vacuum shift center member to electric shift, so I was wondering if a later, electric shift center member would fit in my axle housing originally made for a vacuum shift center and if so, how late? If I buy a complete axle, how late of an axle would my hubs and brakes fit? What was the first year for an electric shift?
Thank you,
Mark
Thank you,
Mark
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Logistics Pro
Joined: Feb 2005
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From: Upper Left Coast
I have a 1350 that I removed the vacuum actuator and fork........ I installed an electric. It's all ready to go.
I don't know what year my "pumpkin" came from but it was vacuum. It's now electric. I think the electric unit will work on many different differentials.
I don't know what year my "pumpkin" came from but it was vacuum. It's now electric. I think the electric unit will work on many different differentials.
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Marmon-Herrington Man
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From: Central Illinois
The 51524 split Timken is used under the '47 and earlier tonner, and F-2/F-3. The F-4/F-5 used the bigger Timken model 53566. Stu
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Cargo Master
Joined: Aug 2014
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From: North Central Arkansas
Thank you everyone for your replies. I do want to apologize, I did ask about converting the vacuum shift to electric in a post back in the spring and HT32BSX115 answered then that it definitely could be done. I've had so much going on this summer, I completely forgot about it.
I will have to go and check out the axle in the truck I mentioned earlier. Unless it is a larger series, it sounds like it may work for my truck.
Thanks again, Mark
I will have to go and check out the axle in the truck I mentioned earlier. Unless it is a larger series, it sounds like it may work for my truck.
Thanks again, Mark
Thread Starter
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Cargo Master
Joined: Aug 2014
Posts: 2,594
Likes: 72
From: North Central Arkansas
Thanks again,
Mark
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