I was looking on the internet and came across a government liquidation site with a bunch of older chevys with the 6.2 in them. I know that the trucks are 1-1/4 ton with the 4.10 gears, but which tranny? Would it have the Turbo 350 or the 700R4? If anyone knows it would be greatly appreciated. Thanks in advance.

Should be a turbo 400.

military used only turbo 400's in all of their applications.;)