Hi folks,can any of you trans gurus help?

I've got a GM TH350C (lock-up converter) trans from an '81 Vette.

Would it be safe to drive without hooking up the lock-up function or will it cause any damage?

I'm talking low speed/short distances here, it's just to find out the general condition of the trans i.e gear shifts etc.
This is before I fork out $200 on a B&M wiring loom for the lock-up function.
I bought the trans from a wrecked C3 and so far everything checks out, the ATF was clean and smelled O.K. so I'm trying to avoid getting into a re-build.
The engine from the same car is in great condition so I have no reason to believe the trans is bad.
The car was burnt out at the rear,hence the reason it was in the junkyard in the first place!
I do not know the PO. so I can't ask him/her!
Any advice would be welcome.
Thanks in advance.
Jock. thumbs_up

1950 Chevy Advance Design 3100 in Scotland
In the Stovebolt Gallery
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I've definately got this truck thing in my blood ... my DNA sequence has torque settings
"Of all the small nations of this earth,perhaps only the ancient Greeks surpass the Scots in their contribution to mankind" Winston Churchill.