Steering gearbox input shaft - can it be replaced..? (1 Viewer)

Joined
Mar 30, 2013
Messages
110
 
I’m in the UK which means corrosion is significant. My steering gearbox has a small leak so I decided to rebuild a spare box and swap it in. Problem is, the steering input shaft UJ was so rusted to the input shaft it categorically wouldn’t budge. I had been soaking the UJ in penetrant for 2 weeks before I tried to remove it. Then the input shaft snapped.

8D7F7AC3-2F50-4F57-9709-758486402F09.jpeg


So, onto spare gearbox number two. Same issue, only this time I eventually managed to get the UJ off. Unfortunately it is not the win I had hoped for. The input shaft splines are so rusty that to reuse the shaft doesn’t seem sensible. I’ve cleaned it with a wire brush and the whole exposed end of the shaft is deeply pitted with corrosion.

F27F7BD4-E7CF-4AC4-8FEB-84387AB1FBAE.jpeg

76F8B0A9-E8E6-4C3F-9182-5A82DD939AC8.jpeg


Looking on Toyodiy it doesn’t appear to be a replaceable part.... Is that right?
 
Last edited:
Joined
Nov 9, 2012
Messages
9,949
Location
Olathe, KS, USA
 
I’m in the UK which means corrosion is significant. My steering gearbox has a small leak so I decided to rebuild a spare box and swap it in. Problem is, the steering input shaft UJ was so rusted to the input shaft it categorically wouldn’t budge. I had been soaking the UJ in penetrant for 2 weeks before I tried to remove it. Then the input shaft snapped.

View attachment 2478605

So, onto spare gearbox number two. Same issue, only this time I eventually managed to get the UJ off. Unfortunately it is not the win I had hoped for. The input shaft splines are so rusty that to reuse the shaft doesn’t seem sensible. I’ve cleaned it with a wire brush and the whole exposed end of the shaft is deeply pitted with corrosion.

View attachment 2478607
View attachment 2478609

Looking on Toyodiy it doesn’t appear to be a replaceable part.... Is that right?
Splines are OK. I'd use it. Otherwise, gearbox #3......
 
Joined
Mar 30, 2013
Messages
110
 
Splines are OK. I'd use it. Otherwise, gearbox #3......
I was afraid that’d be my only option. All gearboxes here will be in pretty much the same condition so not worth the risk of wasting money.
 

Howard705

TLCA 5505
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Joined
Feb 1, 2013
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1,425
Location
Central Illinois
 
hamme ra wedge- shaped chisel into the slot to open it up next time- then work it. Back it on wood when hammering the chisel in. Shouldn't take very much. Midwest usa is the same way. rust on there isn't a big issue. Didn't realize it was hollow that far up. Do the same to the slots in the tie rods when adjusting or changing-open- soak-work- move- wire wheel threads- coat with antiseize.
 
Joined
May 26, 2005
Messages
7,869
Location
Phoenix
 
 
 
The input shaft is available as part of the valve assembly, which includes everything from the shaft to the piston, which I believe is part # 4412060170 for US trucks, although it is almost certainly different for your vehicle as you have a different steering box than what we get in the US. I believe it's typically around $1200.
 
Last edited:
Joined
Nov 9, 2012
Messages
9,949
Location
Olathe, KS, USA
 
The input shaft is available as part of the valve assembly, which includes everything from the shaft to the piston, which I believe is part # 4412060170 for US trucks, although it is almost certainly different for your vehicle as you have a different steering box than what we get in the US. I believe it's typically around $1200.
If that's the case, maybe he could buy a valve kit for his VIN through Partsouq?
 
Joined
Jul 25, 2019
Messages
426
Location
Maine
Small triangular file to clean each spline with a few strokes. It'll serve another couple decades with some corrosion protection after assembly. My solution is a prodigious splattering of fluid film everywhere.
 

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