nuclearlemon
Hard Core 4+
fwiw i forgot to put one of the c clips on the 60 and ran it for a few years with no issues.
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Minitruck Aisin hubs on FJ40 axle?
- Thread starter SteveH
- Start date
SteveH
Hard Core 4+
Pix of hub setup
First pix shows solid axle minitruck hub fully installed on '78 stock front axle.
Second pix shows distance between the groove for the snap ring and the inner hub spline. This photo shows the bolt I put in the end of the axle shaft.
Third pix shows the hub dial cap and the faint groove worn by the bolt cap. The groove is due to the axle shaft moving in and out of the housing, and touching the hub dial cap.
In a perfect world, I would cut a new groove in the birfield, and cut about 3/8" off the end of it the birfield, and it would be shorter overall and the snap ring would do its job.
First pix shows solid axle minitruck hub fully installed on '78 stock front axle.
Second pix shows distance between the groove for the snap ring and the inner hub spline. This photo shows the bolt I put in the end of the axle shaft.
Third pix shows the hub dial cap and the faint groove worn by the bolt cap. The groove is due to the axle shaft moving in and out of the housing, and touching the hub dial cap.
In a perfect world, I would cut a new groove in the birfield, and cut about 3/8" off the end of it the birfield, and it would be shorter overall and the snap ring would do its job.
Attachments
Am I the only one who's never heard of anyone doing this before?
Steve, does that washer do anything to keep the birfield from sliding inward? I'm pretty sure the washer OD has to be larger than the shaft OD in order to work - but it still looks like the birf could freely move in 1/2" or more if it wanted to right?
Steve, does that washer do anything to keep the birfield from sliding inward? I'm pretty sure the washer OD has to be larger than the shaft OD in order to work - but it still looks like the birf could freely move in 1/2" or more if it wanted to right?
SteveH
Hard Core 4+
Actually, there is no washer installed anywhere on the axle shaft. I only installed a short bolt in the end of the axle so that if the axle shaft travelled outward, the bolt head would 'bump into' the hub dial cap. So, the axle is already 'in' as far as it can go. This is why I tried to figure out a spacer (like a slice of pipe) that would allow me to run the snap ring. (However, the snap ring cannot be in place, as it hits the hub dial).
Thanks for your continued comments on this thread, Matt!
Thanks for your continued comments on this thread, Matt!
As far as I know, the snap ring's purpose is to keep the axle from sliding inward as far as it might want to go. I don't know why exactly, as Ige stated there seemed to be no ill effects from not having the snap ring installed. Maybe under certain conditions the inner axle can bind the spider gears or something; I haven't thought about it enough to think of a reason why.
I would say the bolt really isn't doing anything for you; there should be no adverse effects of the axle shaft sliding out as far as it would want to go (I don't think it could ever slide far enough to disengage the differential splines).
I would still like to know if anybody else has ever seen this done before.
I would say the bolt really isn't doing anything for you; there should be no adverse effects of the axle shaft sliding out as far as it would want to go (I don't think it could ever slide far enough to disengage the differential splines).
I would still like to know if anybody else has ever seen this done before.
SteveH
Hard Core 4+
The bolt was simply to prevent excessive in/out travel, for which the inner axle seal was presumably not designed. I agree that the snap ring's purpose is to hold the axle 'out' - as you said. I'm going to play around more with the snap ring and see what I can learn.
PabloCruise
Hard Core 4+
Just to restate the obvious after joining the party late -
You have the long body birfs, used from '76-'78
You can run the Warn lockouts, or you can look for the long-body Aisin (ASCO) hubs that came on '76-'78 Pigs. They will have a silver face and dial and say ASCO vs. Aisin.
Good info here: http://forum.ih8mud.com/40-55-series-tech/127907-lock-out-101-faq.html
You have the long body birfs, used from '76-'78
You can run the Warn lockouts, or you can look for the long-body Aisin (ASCO) hubs that came on '76-'78 Pigs. They will have a silver face and dial and say ASCO vs. Aisin.
Good info here: http://forum.ih8mud.com/40-55-series-tech/127907-lock-out-101-faq.html
When you guys say C-clip you're talking about the dealy-bop that goes on the 3rd member side, right? And snap ring is the doohicky for the hub side... just to be sure, since Ige mentioned leaving off a C-clip, which involves removing an inspection cover to replace, not a hub. so the c-clip keeps the thing from walking out, and the snap ring keeps the thing from walking in.. as has been stated multiple times now. ok back to lurk mode for me, carry on. 
SteveH
Hard Core 4+
Righteous photo and good information - thanks. I had a set of those long-style hubs on my '76 Pig.
When you guys say C-clip you're talking about the dealy-bop that goes on the 3rd member side, right? And snap ring is the doohicky for the hub side... just to be sure, since Ige mentioned leaving off a C-clip, which involves removing an inspection cover to replace, not a hub. so the c-clip keeps the thing from walking out, and the snap ring keeps the thing from walking in.. as has been stated multiple times now. ok back to lurk mode for me, carry on.
I guess I haven't been careful with my terminology. The front axle doesn't have a c-clip like the rear because it is a full floater and there is no inspection cover. There are two c-clips/snap rings that keep the birfield attached to the inner axle. Then there is a snap ring that goes on the end of the birfield shaft, and can only go on AFTER the hub lockout is installed (I believe). We are talking (at least I am) about this snap ring.
TJ, Steve is showing a picture of a long-body birfield with a short-body Aisin hub lockout installed. Only thing missing is the snap ring. At least that's what I think he's showing.