The Ford Barn

fortyonerag · 07-21-2017, 02:57 AM

All,

When I was pulling the rear drums on my very stock 41 Super Deluxe convert, I noticed that left and right hub nuts are a different size and thread.

These are the nuts that hold the drum to the shaft.

Left side axle thread is 9/16 UNF taking a 7/8 socket.

Right side axle thread is 5/8 UNF (I think) taking a 15/16 socket.

Adding to my curiosity is the the left side axle has two keyways - one on each side. One is narrower than the other.

I'm assuming the Left axle is either an orphan or a kluge. What say you?

My other query is what torque setting should be applied to the smaller nut? I'm going to 150 ft/lbs for the 5/8 side.

JSeery · 07-21-2017, 07:18 AM

Repair of damaged threads is one possibility, but that doesn't really explain the second keyway unless the other one shows some damage.

fortyonerag · 07-21-2017, 07:47 AM

That would explain the smaller axle thread I guess. Not sure about the second keyway however...

grumppyoldman · 07-23-2017, 12:12 AM

I'm in the process of changing out the right side axle on my 41. A previous owner had done the same thing to the threads on it. They really looked messed up, and I think the axle is bent. Won't drive one that I can't trust. You should fix it so you can drive without the worry. Axle should be torqued to 200 lbs. everyone says to drive it a little then re-torque, that's what I plan to do. Al

fortyonerag · 07-23-2017, 03:42 AM

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The threads are in OK shape, but I'm not keen on the reduced size thread and nut.

I'm in the market for a replacement rear end. I'll refurbish and install. Not that I plan to drive much 'till then, I have installed drum retainers for peace of mind and will watch this nut like a hawk.

07-21-2017, 02:57 AM	#1
fortyonerag Senior Member Join Date: Sep 2016 Location: Melbourne Australia Posts: 541	41 axle shaft query All, When I was pulling the rear drums on my very stock 41 Super Deluxe convert, I noticed that left and right hub nuts are a different size and thread. These are the nuts that hold the drum to the shaft. Left side axle thread is 9/16 UNF taking a 7/8 socket. Right side axle thread is 5/8 UNF (I think) taking a 15/16 socket. Adding to my curiosity is the the left side axle has two keyways - one on each side. One is narrower than the other. I'm assuming the Left axle is either an orphan or a kluge. What say you? My other query is what torque setting should be applied to the smaller nut? I'm going to 150 ft/lbs for the 5/8 side. Last edited by fortyonerag; 07-21-2017 at 03:03 AM.

07-21-2017, 07:18 AM	#2
JSeery Member Emeritus Join Date: Nov 2012 Location: Wichita KS Posts: 16,132	Re: 41 axle shaft query Repair of damaged threads is one possibility, but that doesn't really explain the second keyway unless the other one shows some damage.

07-21-2017, 07:47 AM	#3
fortyonerag Senior Member Join Date: Sep 2016 Location: Melbourne Australia Posts: 541	Re: 41 axle shaft query That would explain the smaller axle thread I guess. Not sure about the second keyway however...

07-23-2017, 12:12 AM	#4
grumppyoldman Senior Member Join Date: Apr 2017 Location: Texas Gulf Coast Posts: 727	Re: 41 axle shaft query I'm in the process of changing out the right side axle on my 41. A previous owner had done the same thing to the threads on it. They really looked messed up, and I think the axle is bent. Won't drive one that I can't trust. You should fix it so you can drive without the worry. Axle should be torqued to 200 lbs. everyone says to drive it a little then re-torque, that's what I plan to do. Al

07-23-2017, 03:42 AM	#5
fortyonerag Senior Member Join Date: Sep 2016 Location: Melbourne Australia Posts: 541	Re: 41 axle shaft query Sponsored Links (Register now to hide all advertisements) The threads are in OK shape, but I'm not keen on the reduced size thread and nut. I'm in the market for a replacement rear end. I'll refurbish and install. Not that I plan to drive much 'till then, I have installed drum retainers for peace of mind and will watch this nut like a hawk.