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10-01-2012, 02:17 PM #11
I'm glad you were able to cancel that nak. I believe the main difference is that 99-02 had the EP29 as the main flasher and a separate flasher somewhere for the trailer lights, but the 03-07 had the LM487 (I believe the factory non-LED one is LM483 or something), and the newer style serves as one module that controls all of the signal and brake lights on the truck as well as on the trailer.
2001 Silverado Reg. Cab Not-So-Base -- SOLD
2003 Avalanche Z71. No Cladding. Check out my Mod thread.
1974 Triumph Spitfire 1500 - Work in Progress
2003 Sierra 3500 Duramax. The Newer, Better Work Truck
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