Lock out 101 (FAQ)

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The rest of the pages dealing with rebuilding your Aisin lock-outs:
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Any thoughts to which version was stronger, short versus long body ASCO/Aisin? I have both kinds on the shelf. I was guessing the long body kind has marginally stronger guts. Or better to use the short style because easier to find the matching birfs?
 
not a chance in hell .

there as bad as catepillar , buy a million dollar d9 and you might get a hat .




You need to find different dealers...


I have not ever known Finning to be that frugal....




:lol:
 
They all left the factory with drive plates, no "unlocking hubs".

I believe that warn was standard until 75ish when the splines went from course to fine.

then aisin's became another dealer option.

Dealer options did not mean factory

Just going back to this thread for some images. Unless I have this wrong, the FJ55s bound for the US (and maybe other markets) did leave the factory with the long-body ASCO lock-outs...
 
Either grease would work (regular Lithium-based or Moly fortified). The key to greasing lockout hubs is NOT to pack them full. At low temps, a hub full of grease will not lock. Lightly grease the various surfaces inside the hub.

And for the record, while Aisin hubs are 'stronger', I have never heard of a Warn hub blowing up in a stock FJ40. I had them on my 40 for many years with no complaints, except that they stuck out quite far.
 
A couple of years ago I ordered a set of Aisan front hubs from CruiserCorps. I specifically asked if they were 6 spline. Of course when they arrived they were around 30 or so. Jeff at CruiserCorps. made it right by refunding my money and in turn (I was traveling to St. Louis later in the year for my daughters wedding) I made it right by returning the "offending" hubs to CruiserCorps. Not wanting to repeat this mistake, I would like to put new hubs on my '79. Is there a chart anywhere that states what spline count was used on various years? It seems I have seen three. Poser notes that a long hub was used up until '78, but he qualifies that with USA models. Mine is not a USA model, has power front FJ45 drums. I also see that my knuckles are one early and one later (measuring across the bolt heads). The hubs shown in the picture were for my '70. While the fine spline wouldn't work, they are pretty close to the same height and definitely shorter than what is on my '79.

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Pull the dust cap off the drive flange and you will be able to tell if you have fine or coarse Birfs. Being a 79 they should be later short fine splines, but since you have two different pattern knuckles, and being in Ecuador, there is telling what you have until you look.
 
"No telling" is right on the money John Smith! These things are like old IH pickup trucks. You had to know what day and what shift they were built to know which GM, Ford or Chrysler parts they used that day!
 
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