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#40891 Clean-up to Standardize L1 & L2 Rules

From Production Committee · EP, FP, HP · Recommended to the Board

Clean-up to Standardize L1 & L2 Rules

#40891 from Production Committee · Recommended to the Board · Minutes (2026-10 Fastrack)

In GCR, Section 9.1.5.E.1.o.5., change as follows: "Axle shafts, bearings, bearing carriers, hubs, and universal joints/CV joints, and
differential covers are unrestricted."
In GCR, Section 9.1.5.E.1.m.6. change as follows: "Engine mounts of alternate design and/or material can be used, but there can
be no change to the engine’s fore, aft or vertical location except as permitted in 9.1.5.E.1.o.6 7. Engine mounts must attach to
the engine in their stock location."
In GCR, Section 9.1.5.E.1.n.1. change as follows: "The Transmission and its mount(s) areis unrestricted, providing that it is fit in
the same basic location as stock. Sequential shifting transmissions are prohibited. Pneumatic, hydraulic or electric actuation of
the gear shift mechanism is prohibited."

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In GCR, Section 9.1.5.E.1.o.6. change as follows: "Transverse engine cars can rotate the engine about the crankshaft centerline to
align axle shafts/constant velocity joints. On rear engine/rear drive cars the engine/drivetrain can be relocated vertically
upward, to a maximum of one inch, to allow alignment of suspension and driveline components. Differential mounts are
unrestricted, provided the differential remains in the stock location except as permitted in 9.1.5.E.1.o.7."
In GCR, create section 9.1.5.E.1.o.7. as follows: "Transverse engine cars can rotate the engine about the crankshaft centerline to
align axle shafts/constant velocity joints. On rear engine/rear drive cars the engine/drivetrain can be relocated vertically upward,
to a maximum of one inch, to allow alignment of suspension and driveline components."