Pre-1980 should all be passenger drop.
No Wagoneers had vacuum actuated lockers, but many had a vacuum disconnect on the long side axle which is junk and you want to avoid. It can be identified by a large cast section on the tube with a vacuum actuator.
Any open knuckle disc brake Waggy 44 should have 30 spline axles as far as I know. 1965 would closed knuckle. Note that there were 2 different widths of Wagoneers also, narrow and wide track so make sure you get what suits your needs.
Those axles should run you about a hundred bucks each, maybe a little more if they have been removed and you don't have to deal with the hassle. That's the going rate at a junk yard and they are thick out there.
Here's some info from Bill Avista on Pirate. Looks like you'd want a 1974 or newer for the larger/higher spline count outer shafts.
Jeep Front axle Dana 44
Used in 1967 to 1991 FSJ (J10, J20 trucks, Wagoneer, Cherokee)
Ring gear diameter = 8.75"
Available ratios = 2.72 - 5.89
Width: Varying widths from 58" - 62"
Note: Beginning in 1980, the differential was on the driver's side of the vehicle Closed knuckle till 1969; 1970 and later are open knuckle From 1967-1969, all 44 fronts used the 5-74x u joint inside of a closed knuckle From 1970-1973, all 44 fronts used the smaller 5-260x axle shaft u-joint (same size as a Dana 30)
Axle shaft diameter = 1 5/16"x30 spline Inner; 1 1/4"x19 spline Outer (1974-present), 1 1/8"x10 spline Outer (1967-1973) Note: 1967-1969 trucks had 1 1/4"x19 spline Inner axles
No limited slip or locking differential was offered.
