This site is not affiliated with AGCO Inc., Duluth GA., Allis-Chalmers Co., Milwaukee, WI., or any surviving or related corporate entity. All trademarks remain the property of their respective owners. All information presented herein should be considered the result of an un-moderated public forum with no responsibility for its accuracy or usability assumed by the users and sponsors of this site or any corporate entity.
The Forum Parts and Services Unofficial Allis Store Tractor Shows Serial Numbers History
Forum Home Forum Home > Allis Chalmers > Farm Equipment
  New Posts New Posts
  FAQ FAQ  Forum Search   Events   Register Register  Login Login


WD vs WD45
 Post Reply Post Reply
Author
Message
  Topic Search Topic Search  Topic Options Topic Options
Steve(SEMN) View Drop Down
Orange Level
Orange Level
Avatar

Joined: 12 Sep 2009
Location: Rochester, MN
Points: 836 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Steve(SEMN) Quote  Post ReplyReply Direct Link To This Post Topic: WD vs WD45
    Posted: 04 Jan 2012 at 4:59pm
Anybody have a past post on how you tell the what your tractor is if the serial # is in between the WD or the WD45.  The Ser # is 156,000 something.  Does the 45 back up faster?
Back to Top
Sponsored Links


Back to Top
Rfdeere View Drop Down
Orange Level
Orange Level


Joined: 11 Sep 2009
Location: Idaville, IN
Points: 3283 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Rfdeere Quote  Post ReplyReply Direct Link To This Post Posted: 04 Jan 2012 at 5:08pm
   The last WD was serial number 146606. The first WD45 was 146607. Your tractor is a 1953. WD has a 2 mph reverse, WD45 has a 3.25 mph reverse.
Randy Freshour,Member Indiana AC Partners,
http://www.rumelyallis.com
Back to Top
CTuckerNWIL View Drop Down
Orange Level
Orange Level
Avatar

Joined: 11 Sep 2009
Location: NW Illinois
Points: 22825 		Post Options Post Options   Thanks (0) Thanks(0)   Quote CTuckerNWIL Quote  Post ReplyReply Direct Link To This Post Posted: 04 Jan 2012 at 5:10pm
WD-45 production began at 146607 in 1953. You have a WD45.
I don't know about differences in reverse, someone else will know.

I don't know why the serial numbers overlap on the reference page but, if you look down below that chart it tells you the break in the serial numbers.

Edited by CTuckerNWIL - 04 Jan 2012 at 7:50pm
http://www.ae-ta.com
Lena 1935 WC12xxx, Willie 1951 CA6xx Dad bought new, 1954WD45 PS, 1960 D17 NF
Back to Top
DrAllis View Drop Down
Orange Level Access
Orange Level Access


Joined: 12 Sep 2009
Points: 22300 		Post Options Post Options   Thanks (0) Thanks(0)   Quote DrAllis Quote  Post ReplyReply Direct Link To This Post Posted: 04 Jan 2012 at 8:50pm
Straight stick WD's are 2 mph reverse.......late model bent stick WD's and all WD45's are the faster reverse (3 1/4 mph) and faster 4th gear(12 mph) and slower 1st gear (2 1/3 mph).
Back to Top
Brian G. NY View Drop Down
Orange Level
Orange Level
Avatar

Joined: 12 Sep 2009
Location: 12194
Points: 2270 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Brian G. NY Quote  Post ReplyReply Direct Link To This Post Posted: 05 Jan 2012 at 9:51am
 The WD manual shows a higher speed for "Fourth" in the "second type" transmission; 10-3/4 vs 9.  However, I don't believe the rear axle ratios were different,  so I assume the faster 4th gear must be attributable to larger tires or, am I wrong in assuming that 4th is "direct" in both trannys..
Back to Top
CTuckerNWIL View Drop Down
Orange Level
Orange Level
Avatar

Joined: 11 Sep 2009
Location: NW Illinois
Points: 22825 		Post Options Post Options   Thanks (0) Thanks(0)   Quote CTuckerNWIL Quote  Post ReplyReply Direct Link To This Post Posted: 05 Jan 2012 at 10:02am
Higher engine RPM would also make a difference.
http://www.ae-ta.com
Lena 1935 WC12xxx, Willie 1951 CA6xx Dad bought new, 1954WD45 PS, 1960 D17 NF
Back to Top
Brian G. NY View Drop Down
Orange Level
Orange Level
Avatar

Joined: 12 Sep 2009
Location: 12194
Points: 2270 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Brian G. NY Quote  Post ReplyReply Direct Link To This Post Posted: 05 Jan 2012 at 10:34am
I thought about that too, but, all my manuals from the early WD to the WD-45 show the same Governed engine speed of 1,400 RPM and "high idle" speed at 1677-1722 RPM.
Back to Top
Lester View Drop Down
Orange Level
Orange Level


Joined: 08 Jan 2010
Location: Indiana
Points: 526 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Lester Quote  Post ReplyReply Direct Link To This Post Posted: 05 Jan 2012 at 10:40am
WD45 is geared higher in 4th because of higher rearend.
Back to Top
DrAllis View Drop Down
Orange Level Access
Orange Level Access


Joined: 12 Sep 2009
Points: 22300 		Post Options Post Options   Thanks (0) Thanks(0)   Quote DrAllis Quote  Post ReplyReply Direct Link To This Post Posted: 05 Jan 2012 at 12:20pm
Ring and pinion (which is part of the transmission) is faster on the "type two" transmission.
Back to Top
Brian G. NY View Drop Down
Orange Level
Orange Level
Avatar

Joined: 12 Sep 2009
Location: 12194
Points: 2270 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Brian G. NY Quote  Post ReplyReply Direct Link To This Post Posted: 05 Jan 2012 at 3:50pm
That must be the answer.
Altho the pinion gear is on the main shaft and might be considered part of the transmission, I would consider the ring gear a part of the differential.
Fine line, there?


Edited by Brian G. NY - 05 Jan 2012 at 3:51pm
Back to Top
DrAllis View Drop Down
Orange Level Access
Orange Level Access


Joined: 12 Sep 2009
Points: 22300 		Post Options Post Options   Thanks (0) Thanks(0)   Quote DrAllis Quote  Post ReplyReply Direct Link To This Post Posted: 05 Jan 2012 at 4:27pm
The point was, the trans mainshaft (pinion) doesn't interchange between the two transmissions, so the speeds are tied to which transmission it is.
Back to Top
Brian G. NY View Drop Down
Orange Level
Orange Level
Avatar

Joined: 12 Sep 2009
Location: 12194
Points: 2270 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Brian G. NY Quote  Post ReplyReply Direct Link To This Post Posted: 05 Jan 2012 at 9:23pm
OK....I admit having never been into either tranny.
Both the WD and WD-45 have  43 tooth ring gears, how many teeth on the WD pinion vs the WD-45 and what is the effective ratio of each?
Thanks
Back to Top
CTuckerNWIL View Drop Down
Orange Level
Orange Level
Avatar

Joined: 11 Sep 2009
Location: NW Illinois
Points: 22825 		Post Options Post Options   Thanks (0) Thanks(0)   Quote CTuckerNWIL Quote  Post ReplyReply Direct Link To This Post Posted: 06 Jan 2012 at 9:14am
Originally posted by Brian G. NY Brian G. NY wrote:

OK....I admit having never been into either tranny.
Both the WD and WD-45 have  43 tooth ring gears, how many teeth on the WD pinion vs the WD-45 and what is the effective ratio of each?
Thanks
 And which WD is this for(straight shifter or curved)? It has to be for the curved shifter WD's.  The late WD had the same tranny as the 45. If the ring gear had different numbers of teeth, I believe the pinion would have different numbers as well.
http://www.ae-ta.com
Lena 1935 WC12xxx, Willie 1951 CA6xx Dad bought new, 1954WD45 PS, 1960 D17 NF
Back to Top
Brian G. NY View Drop Down
Orange Level
Orange Level
Avatar

Joined: 12 Sep 2009
Location: 12194
Points: 2270 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Brian G. NY Quote  Post ReplyReply Direct Link To This Post Posted: 06 Jan 2012 at 4:33pm
Actually, the early WD ring gear and the late WD/WD-45 ring gears both have 43 teeth.
However, they have different part numbers.
So........I think, as Doc says, the ratios must be different between the early WDs and the late WD/WD-45s. 
Therefor, there must be a higher tooth count on the pinion gear for the late WD/WD-45 than the early WD which would account for that different ratio.
I know I have an early WD pinion gear lying around here somewhere so I could count the teeth on it.
I was hoping Doc could give me the tooth count on the late WD/WD-45 pinion just for my edification and for notation in my parts manual.
I have made notes in both my repair manuals and parts manuals of information I've gleaned from people on this site.
I'm getting old(er) now and may not be able to use all this valuable info but maybe whoever winds up with all my "stuff" will make good use of it!  LOL
Back to Top
DrAllis View Drop Down
Orange Level Access
Orange Level Access


Joined: 12 Sep 2009
Points: 22300 		Post Options Post Options   Thanks (0) Thanks(0)   Quote DrAllis Quote  Post ReplyReply Direct Link To This Post Posted: 08 Jan 2012 at 9:45pm
The ring and pinion for late WD's and all WD45 gassers must be 13 teeth pinion and 43 teeth ring gear which is 3.3 to 1 according to my service book. Then, an older WD must be 12 teeth to 43 teeth which is 3.5 to 1. The only info the service book gives is 3.5 to 1 and 3.3 to 1, no actual gear tooth count. A WD45 diesel and any D17 is 9 tooth pinion to 35 tooth ring gear for 3.9 to 1 ratio.
Back to Top
allischalmerguy View Drop Down
Orange Level
Orange Level
Avatar

Joined: 11 Sep 2009
Location: Deep River, IA
Points: 2894 		Post Options Post Options   Thanks (0) Thanks(0)   Quote allischalmerguy Quote  Post ReplyReply Direct Link To This Post Posted: 08 Jan 2012 at 10:57pm
I know I have a 1950 WD and there are times I wish I had a slower 1st gear..thanks for sharing all this stuff.
It is great being a disciple of Jesus! 1950 WD, 1957 D17...retired in Iowa,
Back to Top
Brian G. NY View Drop Down
Orange Level
Orange Level
Avatar

Joined: 12 Sep 2009
Location: 12194
Points: 2270 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Brian G. NY Quote  Post ReplyReply Direct Link To This Post Posted: 09 Jan 2012 at 10:55am
Thanks Doc,
Just one more little piece of info for future reference.
Back to Top
 Post Reply Post Reply
  Share Topic   

Forum Jump Forum Permissions View Drop Down

Forum Software by Web Wiz Forums® version 11.10
Copyright ©2001-2017 Web Wiz Ltd.

This page was generated in 0.066 seconds.


Help Support the
Unofficial Allis Forum