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4x4M38
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4x4M38
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Joined: May 30, 2014
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Location: Texas Hill Country
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 Posted: Mon May 08, 2017 3:28 pm Post subject: |
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In searching for axle info here I ran across this:
"Posted: Fri Feb 15, 2013 7:53 pm Post subject: Reply with quote
If you have the correct M38 model 41 or 44 rear axle the odds are the ratio is 5.38:1. If you truly have a GPW or MB front axle then you have two problems. 1-the ration is 4.88:1 and 2-The steering bellcrank is on the axle housing instead of the crossmember. "
Did the M38 come with a 41 at some point? before the 44?
And again, my concern is with the 43/8 on the front. Are they different ratios?
Tks,
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Brian
1950 M38
MC11481
http://www.willysmjeeps.com/v2/modules.php?set_albumName=album372&op=modload&name=gallery&file=index&include=view_album.php |
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keats
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Posts: 332
Location: Middletown Ct
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| Posted: Mon May 08, 2017 5:40 pm Post subject: |
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an easy way to get a rough idea of gear ratio is to jack up the axle, put tranny in neutral and block wheels of other axle, make a mark on the driveshaft and one on the wheel and count the revolutions needed by the shaft to turn the wheel one revolution.
43/8 is the number of teeth on the ring gear and pinion gear.
divide a ring gear with 43 teeth by a pinion gear with 8 teeth we find that the gear ratio is 5:38.
41 cj 3a axles were 5:38.
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Gary Keating
1949 C3A, 1952 M38,
1954 M170, 1957 Cj3B |
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4x4M38
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wesk
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4x4M38
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wesk
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keats
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Joined: Apr 14, 2005
Posts: 332
Location: Middletown Ct
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| Posted: Mon May 08, 2017 11:30 pm Post subject: |
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M38 prototypes used the MB/GPW rear axle but thats another story. I have not heard of any other axle being used on production M38's other than the dana 44.
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Gary Keating
1949 C3A, 1952 M38,
1954 M170, 1957 Cj3B |
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wesk
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4x4M38
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wesk
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Joined: Apr 04, 2005
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Location: Wisconsin
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| Posted: Tue May 09, 2017 10:13 pm Post subject: |
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I See now Brian,
Had you just linked the post and used the Quotation marks with that sentence this discussion would have been over two days ago!
| Quote: | | If you have the correct M38 model 41 or 44 rear axle the odds are the ratio is 5.38:1 |
What did I mean by this comment??????
I meant if you have the correct M38 rear axle whichever 4_ unit it is. At that moment 4 years ago I was trying to get a point across quickly and did not want to interrupt my train of thought by spending a half hour researching which or both were original to the M38 since the primary point of that discussion was the FRONT axle (THE model 25).
_________________
Wes K
45 MB, 51 M38, 54 M37, 66 M101A1, 60 CJ5, 76 DJ5D, 47Bantam T3-C & 5? M100
Mjeeps photo album: http://www.willysmjeeps.com/v2/modules.php?set_albumName=Wes-Knettle&op=modload&name=gallery&file=index&include=view_album.php |
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wesk
Site Administrator
Joined: Apr 04, 2005
Posts: 16256
Location: Wisconsin
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| Posted: Tue May 09, 2017 10:14 pm Post subject: |
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I See now Brian,
Had you just linked the post and used the Quotation marks with that sentence this discussion would have been over two days ago!
| Quote: | | If you have the correct M38 model 41 or 44 rear axle the odds are the ratio is 5.38:1 |
What did I mean by this comment??????
I meant if you have the correct M38 rear axle whichever 4_ unit it is. At that moment 4 years ago I was trying to get a point across quickly and did not want to interrupt my train of thought by spending a half hour researching which or both were original to the M38 since the primary point of that discussion was the FRONT axle (THE model 25).
_________________
Wes K
45 MB, 51 M38, 54 M37, 66 M101A1, 60 CJ5, 76 DJ5D, 47Bantam T3-C & 5? M100
Mjeeps photo album: http://www.willysmjeeps.com/v2/modules.php?set_albumName=Wes-Knettle&op=modload&name=gallery&file=index&include=view_album.php |
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