Hi
I have used Cortina uprights, I know I left the bottom wishbone the same and modified top, will measure top and let you know. Leaving the bottom wishbone as standard maked the front track approx 20mm wider, but I left it this way so if I have to use Sierra uprights I only have to remake upper wishbones. Car seems to drive fine with Cortina uprights and locks front brakes first, have just fitted some grooved discs so will have to check brakes again. Will measure upper wishbones today and post measurements later.
Jeff
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