Lotus Europa Twin Cam Owner's Manual page 13

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The trailing arms were relieved to provide clearance for the wide section Goodyear
cantilever-type tires and wide wheels. The rubber chassis mounts were changed to "Fabroid"
bearings and the trailing arms were modified to accept the "Fabroid" bearing rod-ends. Stiffening
plates and reinforcement brackets were added to the chassis at the trailing arms attachment points.
Care must be taken when installing the trailing arms to ensure there is enough angularity on the
"Fabroid" bearings- tapered spacers and shimming washers between the bearings and the chassis
are required, Wheel alignment is achieved by adding or removing shimming washers. (See
Figure 2.3A and 2.36)
The standard rear hubs and uprights were utilized with the uprights drilled to accept
the brackets for the rear sway bar reaction links. (See Figure 2.2)