Thanks for your reply too bigted. I asked the wrong question by mistake. I was trying to work out what the next mustang after the side pull was and if there was another side pull or power torque before they were changed to white. The man MF, set me straight!!!
Thanks to all who have helped me out.
I've been working on the model history of the Mustangs up to the White Mustang GTS with the optional V40 cowling for about 4 or 5 months now and I'll hopefully be able to present it here with part reference numbers, years, engine type, colour and hopefully pictures of all of the ones I have. Unfortunately I don't think I'll find the beautiful cherry red and white 73-74 and a catcher for 1 other by the time its finished.