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- Jul 20, 2004
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Have you ever seen a twisted sector shaft on a FJ60/FJ62 steering box? It's a fairly common problem on the FJ/FZJ80 steering boxes. The common fix is to upgrade to a 105 sector shaft.
I have a '60 sector sitting right here that looks like a banana, any of them can be bent/broken, but not that common with any of them. Lots of big pig '80s have done many years of hard wheeling, 37" tires, etc, without failure, again not that common, just one thing (of many) that '80 cry about. Given the same stress the '60 box will fail much sooner/easier.
Maybe tighter, not sure about more powerful, maybe less prone to leakage, but definitely not stronger.
My experience differs, have put both on '40s, locked/35" tires, the '80 box provides more power assist, is overall a better driving experience. As it should, has a larger piston area, so will make more power from the same hydraulic pressure.
As for the pump, the FJ60 pump flat out sucks in anything other than the stock application. This is due primarily to the fact that the reservoir is attached directly to the pump and always leaks. In addition, the bronze bushing the main shaft rides on wears out, causing more pump leakage, which makes the pumps unrebuildable if its worn out.
Agree, not a fan of the '60/slipper type pump, but thought the subject was '62 pumps? The reservoir on the Saginaw also connects directly to the pump, users often pry on it deforming it, takes two o-rings to seal, most often to a deformed sheet metal surface. The '62 reservoir takes one o-ring sealing with machined metal surfaces, simple, $.20 fix. Have fought many more leakage issues with Saginaw than Toyota pumps. The '62 pumps are ball bearing supported, it's easily replaceable and ~$8. https://forum.ih8mud.com/threads/the-dsrtrdr-is-getting-some-tlc.749124/page-22#post-8791086 Note the bearing on the shaft in the second pic, they are rarely bad, almost never replace them.
A saginaw pump appears to pump more pressure and/or more volume, as my steering assist greatly improved with nothing other than a saginaw pump addition. No, I'm not aware of the condition of my stock PS pump other than the reservoir always leaked and required fluid.
Don't even start talking about the cost benefit of going with a saginaw!
There are a bunch of differing Saginaw pumps, some larger, some smaller, some bushing supported, all are vane pumps, like the '62. '80, etc. Agree on the swap cost thing, would be embarrassing: For the Saginaw; need a pump, bracket to mount, pulley that fits, hoses and/or adapters, possibly move other parts out of the way, a belt of the new proper length, etc. To use the '62 pump need a ~$10 seal kit, maybe a ~$8 bearing, very simple to build, reseal... We have built/run both, Saginaw on GM swaps, Toyota on non swaps, on both '60 and '80 boxes, note little if any difference in performance.