1973 atc 70

[ParrotGreenUS90]

Picked up a 1973 ATC 70 yesterday. Everything appears to be original including the flames on the tank and silver forks. The recoil is missing the dogs and spring assembly. I did some research on the forum and noticed there is a difference in the recoil years. I do have a 83 and 84 ATC70. Would the recoil those machines use work on a 73? I would like to verify prior to trying and avoiding any damage. Also are the dogs and spring assembly from newer 70's work on this recoil?

[KASEY]

THE early housing are shallow and the later won't work.. but the parts will fit..