I got my new to me B74 at Xmas and have upgraded the following parts. G10 chassis braces to reduce the stiffness of the chassis, the longer B74.1 rear driveshafts, LRC rear wishbone mounts, +3mm steering rack and B74.1 diff shims.
These were recommendations by RogerM, and bring the car pretty close to a 74.1. I have not changed shock towers or rear wishbones yet, I am waiting to see what is considered a good base setup when we can get going again!
Cheers
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