stevebradford
In the shop
You can and I have twice turned the vacuum into a manual. I split the case and took the vacuum assembly off removed the selector shaft and drilled out the factory cast recessed spot for a detent ball in the front half of the case. They all have it like it was meant to be a manual
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Tap the hole for a detent cap I used a brass 3/8 plug, find a appropriate ball bearing and spring. Next install the selector shaft lock it into 4wheel and mark the shaft locked and unlocked then remove and carve a grove into the shaft on your marked locked and unlocked with a grinder. There’s already a grove in the shaft for the 4wheel drive switch to copy for depth.
Then all you need the shifter boot and seal for for the front nose of the Tcase (Split case 4 wheel drive selector shaft seal 90311-22005
Split case 4 wheel drive selector shaft boot 36318-60020)
and to find the manual tcase shift arm which i did or weld and extension onto it to catch the selector shaft that already comes with the correct linkage catch even though it’s a vacuum case.
Course you can buy all the detent and the correct selector parts to swap it over from Toyota also but no need. Just like people these Tcases are all pretty much the same inside
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Better than what?
As long as I'm stuck with vacuum, I'd rather have a manual switch than rely on dodgy old 24v solenoids.
I wanted to build the switch just for a fun lathe project
At some point I'll put a rebuild kit in my tcase, and maybe then convert to manual.
Next summer maybe.
I repeat myself a lot these days. What else could be better than a manual??

