I bought a partially built jeep with a dana 20 in it and 32 spline outputs or some thing like that. Is there any way to count and figure out if its got terra low gears in it?

I take the bottom cover off can I tell that way?

Its leaking a little between the adapter and case and the bottom cover from sitting. I need to replace those gaskets any ways.

It was built about 10 years ago for a magazine build and sat since.

Find numbers on some of the gears and compare them to here: http://www.novak-adapt.com/knowledge/transfer_case_gears_grid.htm

If they don't match, try calling the companies and asking them their numbers.