[Healeys] 3-point belts for rear seats

[BJ8 Healeys]

Hello, Healeyphiles -
 
A friend has asked if there are 3-point belts available for the rear seats
in a Healey, for additional protection of the little  ones who ride back
there.
Anyone know?
 
Thanks,
Steve Byers
HBJ8L/36666           
BJ8 Registry
Havelock, NC  USA