East Coast Supercharging ECS Stage 2 2003+ Fuel System - Manual (Page 16)

Lubricate the crossover tube O-ring mating surfaces (1-4) with GM P/N 1051717
rubber lubricant.
Important:
• Note the T-shaped alignment feature on the crossover tube.
• The crossover tube will not fully seat into the fuel tank if the jet pump lines are
misaligned.
Connect the crossover tube to the left fuel tank using the features previously noted.
Important: The crossover tube collar tangs will not latch if misalignment exists.
Rotate the crossover tube collar (3) clockwise to engage the tangs.