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babychadwick

1938 Zephyr rear end

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What similarities are there between the Zephyr and Ford rear end?  Yesterday I was driving, a bang and then free wheeling, after towing home (a couple blocks) if placed in gear there is a grinding sound in the left rear hub.  I will be tearing into it soon and most likely looking for parts.

 

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Posted (edited)

Hi Chad,  sounds like it may have broken an axle. That  happened  to my 38 LZ. about 4 years back. Jack the left wheel up, give it a shake, see if it wobbles and falls off.
Can be due to worn axle  tapper, due to loose  nut and  or worn bearing housing sleeve. The sleeve has a grease nipple and should be regularly greased. The sleeve   can be replaced. Check the under side of sleeve for wear. 
Similarities?  The 36,37 LZ. . rear end is similar to Ford I believe  but from 38 the housings where heavier and  the gear wheel / pinion was  Hypoid. The axles are the same as Ford as much as I can tell.  Roy

Edited by 38ShortopConv. (see edit history)

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The design is similar, but except for the 36 LZ, there are very few parts that interchange with the Ford rear end. The axles for the 36-39 LZ is 86H-4235 indicating that there is a difference between it and the Ford axle. I don't have the specs for the LZ axles.

 

Here are the dimensions of the Ford V-8 axles:

18-4235 (1932-1934)  length 32.18" with an 18 tooth gear.

48-4235 (1935-1938) length 32.85" with an 18 tooth gear.

81A-4235 (1939-1941) length 32.85" with a 16 tooth gear

21A-4235 (1942-1948) length 33.70" with a 16 tooth gear

 

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Posted (edited)

Yes, it seems its just a matter of matching your axle length and number of spur gear teeth with a Ford axle from the thirties.  The broken axle  that came out of  my 38 LZ. and the one I replaced it with both  had FORD stamped on them but no part  number visible.  

Edited by 38ShortopConv. (see edit history)

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