by 1972nail » Sat Sep 02, 2017 5:32 pm
As Fred says, the servo will probably be serviceable but not look great. Best to try it and see.
Triumph TR7 4 speed servos are very similar and would probably fit the bill OK. The vacuum pipe location may be on the opposite side of the master cylinder, I'm not sure. Just check that the overall diameter is the same and the cylinder mounting bolts are horizontal like the Viva.
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