This late 1200 lower control arm (LCA) bolts into and is compatible with older 1200s. Yet makes it easy to fit either 45mm or 2.0 inch struts.
H10 is B110 parts H72 is B210 parts H74 is late B210/late B120 ute parts H85 is B310 1200 parts W50 is A10 parts (also used by B310)
Also see: Strut Swaps
To fit Datsun 45mm struts, use a 45mm strut-accepting package.
45mm struts: B110, B120 or 120Y
early 45mm strut support: * H10 LCA with H10 Tension Rod * H10 Balljoint * H10 Knuckle Arm
late 45mm strut support: * H85 LCA with H72 Tension Rod * H74 Balljoint * H74 Knuckle Arm
To fit Datsun 2" struts, use 2" strut-accepting package.
2" strut support: * H85 LCA with H72 Tension Rod * W50 Balljoint * W50 Knuckle Arm * 2" Datsun Strut (280ZX, S13, 810, etc)
Alternatively you can use LCA/Rod, balljoints and knuckle arms from other datsuns -- with or perhaps w/o modifications -- but it is more straightforward to use the factory Sunny parts. W50 is Datsun A10/B310 parts.