I am in the process of converting to PS on my 76 FJ40, the nut from the original box does not fit on the new PS box, can anybody tell me what size nut/thread pitch goes on the end of the this power steering box. And the bet place to get one?
Pitman Arm Nut Size?
- Thread starter Jonny Tsunami
- Start date
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Call Dan or Beno at American Toyota in Albuquerque NM. I'm pretty sure the dealer can get that nut for you.
If you're in a hurry, go to the parts counter at the local dealer. Maybe call and get the part number for best results.
If you're in a hurry, go to the parts counter at the local dealer. Maybe call and get the part number for best results.
What is the application of the steering gear?
If the stock nut does not fit, how are they going to find the correct one not knowing what the steering gear is off?
Dan is good; however, he is far from omnipotent.
Looks like a minitruck box. Maybe Toyota would have a nut to fit on it? Maybe it's not the same as the nut from the manual box it's replacing? Maybe a smart guy from around here could be more helpful?
Does it look like a mini truck box? Just call Dan and say I have a mini truck box and need a nut?
Was stated in the first post...
Cannot put a thread gauge on the picture, and do not have any steering gears sitting around here to measure. Even if I did, I do not know for certain that what I have is identical to what is pictured, again, because the OP has not stated what this steering gear is off.
On these conversions I have done in the past, I have not had this issue.
Are those Nylon lock nuts I see holding that box down to the pedestal? Scary.
Lock washers and 100% steel class 10.9 nuts would be a better choice.
Lock washers and 100% steel class 10.9 nuts would be a better choice.
No, I meant omnipotent.
Dan is a great guy and very wise in the world of parts for the Toyota line, however, he is not a God-like being, that many out here, make him out to be.
What do have against nyloc nuts Splangy?
In MANY applications I see nyloc nuts and flat washers as preferrable to "standard nuts and splits".
I see no problem here so long as the threads protrude far enough into the plastic of the nyloc nut to provide the "locking".
In fact I'm a big fan of nyloc nuts except in heat-affected areas!
- Thread starter
- #12
I came up with a solution to the nut issue, seems the threads on the under side of the splined shaft of the PS steering box were damaged and caused the threads of the nut to become striped. I was able to locate a 22mm x 1.50 tap and die set, which wasn’t easy and fixed the threads on the shaft and on the inside of the nut. It all went back together fine and is up and running nicely.
Should I be concerned about the nylon nuts I used? I used flat washer under and behind the nuts and bolts also lock-tight on the threads. Thanks for all the helpful comments!
JT
Should I be concerned about the nylon nuts I used? I used flat washer under and behind the nuts and bolts also lock-tight on the threads. Thanks for all the helpful comments!
JT
You certainly have a point about thread depth Eddy.
Coming to think of it, I wouldn't use them on suspension U-bolts (where there's obviously no heat problem) because those nuts require a LOT of torque and I believe Toyota used extra-thick standard nuts there too.
However the only concern I have with this steering box application is that the photo makes it look as though some threads may not pass completely through the "plastic lockers". But then if that's true, Jonny's use of locktite on the threads turns it into "just an appearance issue" IMO.
So I still don't think strength is an issue in this particular application .... although I admit it's rather a fine judgement call so I respect alternative opinions such as yours. (There's no doubt that the strength of steering components should never be compromised!)
(Casting would break before those bolts/nuts fail IMO.)
You are aware that there are manufacturing standards for hardware and that the nylon locking mechanism in a nut is “in addition to” the original height of the nut, which are to be the same, plain nut or nylon locking nut.
You two had best not ever get into an aircraft again. It is amazing the amount of nylon locking nuts that are used in the aerospace and aviation industry.
I do not like the fact that those bolts appear to not go fully through the nut.
Also, if I am using fine thread or coarse thread fasteners, both metric and standard thread, I only use matched components, (equal hardness of bolt, flat washer and nut) and prefer metal locking nuts to nylon.