A Pair of Shock absorbers DAF MXK2751 please check the size, total length end of pin to end of pin 19.5 inches, fully extended 27 inches.
Heavy duty commercial shock absorber 50 cms closed, total length when fully open 70 cms stud 9/16 inch, Army surplus actual weight OF EACH SHOCK 4 kg,
Check out these shockes appear to be the same length as RB44, although heavyier in weight.