Lift bar/arm.

[hsracer]

Looking to get a new lift bar/arm for rocket 2007 blue/grey front and wanted to get a out-pace aluminum lift bar/arm. In the out -pace book it shows a 371/2 part #54-003-ro and 391/2 part#54-003-ro+2. What does the ro+2 mean. Don’t know witch one they use in the rocket car.

[Punisher88]

Seems like to me its 2 inches longer from center of rearend. The first is 37.5" long. The second is 39.5.

[Krooser]

Ro means Rocket + 2"...