Jannige, I've got the same fluid leakage from the column. It started by having no center cap on the steering wheel (since before I bought mine). Water leaks in from outside storage & rusts the shaft, which takes out its upper bushing. A bulge in the outer column says that water has frozen inside it. The following applies to offset-column T5Cs:
Once the shaft starts to wobble a 'face' seal, where the shaft goes into the steering box, leaks & allows the column to fill with hydro. It's about 1" x 1/8" and (if you have the offset column too)
WE are in a bit of trouble there. I sent for the seal. $42 and another $14 to have it sent by
FedEx (mailed by the bums) in a 8x12 bubble envelope.
The column has to come out, but the wheel must come off to replace the seal or bushing. (That's where I'm hung up, & Kroil-soaking for months isn't freeing-up the wheel's spline.) If you get that far, don't just take the column OR box apart without calling TerraQuip. A guy there will talk you through disassembly, which if done wrong will spill parts you'd never get back together, much less the right way.
Since the offset steering box is no longer available, these would replace what's on the old models (while available):
Surplus Center - 5.9 CU IN CHARLYNN 211-1008 NLR STEERING VALVE (non load reacting)
Surplus Center - 18" CHARLYNN 204-1015 STEERING COLUMN
A new wheel would be needed too, and maybe some bracketing to mount the box at the bottom.
My 'bubba' alternative in the meantime ... would be to install a clamp-over valve (icemaker tap) and a catch can for the oil to keep it from trickling out the top & off my britches-leg. (Haven't gone there yet.) PM me if you want more about it.
As you know, Terramite is under new ownership as of earlier this year. In the past, they've been quite good about parts (not prices) & the same guys are likely there to help. PM me for other stuff if you like. (A new tractor makes the T5C my 'tinker' toy for now & I'm 'all over it'.
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