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4 Bolt Front End

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MNLonnie View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote MNLonnie Quote  Post ReplyReply Direct Link To This Post Topic: 4 Bolt Front End
    Posted: 20 Sep 2010 at 5:10pm

I looked at a 1950 WD today and it had a 4 bolt front end. The guy who has it is the original owner and says as far as he can remember he didn't change the front end out but his memory isn't what it used to be. What year did they start using a 4 bolt because I have a 3 bolt on my WD45?

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Michael Crowe View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Michael Crowe Quote  Post ReplyReply Direct Link To This Post Posted: 20 Sep 2010 at 5:47pm
The 4 bolt front end did not come out until the WD45 series, i think sometime in 1954. Without consulting Swinford's AC bible, I can't be anymore exact.
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Dave (NE) View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Dave (NE) Quote  Post ReplyReply Direct Link To This Post Posted: 20 Sep 2010 at 7:41pm
I'd say the four bolt came out later than '54, probably about the time the '45 diesel was introduced.
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Lonn View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Lonn Quote  Post ReplyReply Direct Link To This Post Posted: 21 Sep 2010 at 7:13am
Diesel was introduced in the fall of 1954.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote B26240 Quote  Post ReplyReply Direct Link To This Post Posted: 21 Sep 2010 at 7:20am
Lonn I had a 54 that had the 3 bolt frontend and a 55  with a 4 bolt. they often made switches mid years. also I have no history on either of these unit and they could have been changed along the way.
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Brian G. NY View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Brian G.  NY Quote  Post ReplyReply Direct Link To This Post Posted: 21 Sep 2010 at 9:21am
A-C converted to the 4 bolt plate on their WFEs with tractor #WD186413 which would make it later in the year 1954.
Interestingly, the diesel was introduced earlier that year with tractor #WD181341.
Maybe the extra weight dictated a heavier setup?
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Roddo Quote  Post ReplyReply Direct Link To This Post Posted: 21 Sep 2010 at 9:24am
The steering gear change because the diesel was longer.  The older 3 bolt gears had a big flat part in the top of the casting the stuck back right where the crank pulley would be on a diesel. 
They changed the gears so that the flat part was gone and the steering gear stops right where the hood starts on a gas 45.  Before that they stuck back in behind the grille.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Brian G.  NY Quote  Post ReplyReply Direct Link To This Post Posted: 21 Sep 2010 at 10:24am

That is also very interesting. Norm Swinford's book says the first WD-45D had Ser.#181341. The A-C parts book shows the new front support with the 4 bolt plate started at Ser.#186413.  I wonder; were all WD-45Ds between #181341 and #186413 NFEs?  The parts book also indicates that a heavier NFE support for the WD-45 and WD-45D was introduced with Ser.#183053. Sometimes I think I tend to over analyse this stuff?  LOL

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MNLonnie View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote MNLonnie Quote  Post ReplyReply Direct Link To This Post Posted: 21 Sep 2010 at 7:40pm
I should have just told him I would take it when I was there but I didn't because I was leaving town for a few days. He was asking less than the 4 bolt normally sells for and the rims were in great shape also. I'll see if he still has it when I get back on Friday.
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Brian G. NY View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Brian G.  NY Quote  Post ReplyReply Direct Link To This Post Posted: 21 Sep 2010 at 9:57pm
Yeah, I'd be all over that one!! Can't never have too many good "parts"!
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