FJ40 manual steering gearbox rebuild

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Fj40owen said:
Did a re-seal on a manual steering gear box from a 1982 FJ40.
Video of the rebuld here.


It is also for sale for $500 shipped if anyone is interested.
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New owner question. My manual steering box has a zirk on top. I was surprised to see gear oil come out of yours. What is the proper lubricant and lubrication process for this. Mine is a '75 if that matters.
 
My manual steering box has a zirk on top.

This was added by an owner, is a fairly common hack done over the years by people who say 'if you pump the entire gearbox full of axle grease, it won't leak' - which is true, but not a great idea. I can imagine the steering effort at -20F.
 
SteveH said:
My manual steering box has a zirk on top.

This was added by an owner, is a fairly common hack done over the years by people who say 'if you pump the entire gearbox full of axle grease, it won't leak' - which is true, but not a great idea. I can imagine the steering effort at -20F.
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Ahh, OK. Well if it hits -20F here in Texas we'll have bigger issues than poor steering effort. I'll take a look later today. Is there a drain or do I have to loosen the bolts and break the seal?
 
No drain that I know of.

Hillbilly fix: maybe just top it off with 90wt, and make Birfield Soup/Backwoods Goop (if you're an old Mud member, you know what that is...)
 
SteveH said:
No drain that I know of.

Hillbilly fix: maybe just top it off with 90wt, and make Birfield Soup/Backwoods Goop (if you're an old Mud member, you know what that is...)
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Cool, not an old member but have read enough knuckle rebuild threads to know what you mean. There are no visible leaks so I have been holding off on this rebuild in favor of other more pressing issues. This weekend is replacing all of the rotted steering linkages.
 
MatthewMcD said:
Is there a drain/fill plug? I have not looked real hard, but mine only has a grease zirk fitting on top
MatthewMcD said:
Cool, not an old member but have read enough knuckle rebuild threads to know what you mean. There are no visible leaks so I have been holding off on this rebuild in favor of other more pressing issues. This weekend is replacing all of the rotted steering linkages.
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Yea, my worn out seals acted as a great drain.
 
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