When in down-lock, LG08 strut was not against the over-center stop. Removed the landing gear retraction lever LG12 from the port landing gear retraction arm LG08. The LG12 will have to be replaced with a new unit. A cargo strap has been used to hold the landing gear retraction arms (LG08) hard against the over-center stops. This should allow proper placement of the landing gear retraction lever (LG12) on the arm (LG08) so that the mounting holes can be drilled.