They had a panhard setup for lateral. It is not on the homologation form because it is not homologated. Before 1976 the FIA rules gp2 of rear suspension pick up points and type were free. After 1976 the std mounting points had to be used and all the "old" gp2 modifications were accepted for one more year on the existing gp2 cars and in 1977 it had to go by 1976's rules. Triumph did not bother homologating this rear setup because in 1976 the TR7 came. That is also the reason why after 1976 only gp1 Dolomites were on the road. The gp2 with 4 link parrallel could not be used anymore on FIA events. The only effort they made was homologating most of the engine parts for gp1 to have almost as much power as the gp2. I do have a lot of original pictures of the gp setup and also from the dutch gp2 rally sprint but they were all different. There was never ever 2 identical rally cars build by ST in gp1 or gp2.
Jeroen
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