I dont see why all that info is nned to tell thebasic how to repair or install retracts but if the info is needed here is the info.

The plane is a 1400 mm FMS P-40 foamy. the manufacture of the retracts are unknown, but i know that they are servoless retracts.

What i am also asking is, is there a youtube video on how to install servoless retracts