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2000 5.3 in 2003 RCSB (was 4.3)

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Old 04-03-2015, 09:54 PM
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Default 2000 5.3 in 2003 RCSB (was 4.3)

I recently swapped a 5.3 from a 2000 GMC Sierra 1500, 2wd, 4l60E into my 2003 RCSB 4.3, NV3500, 2wd.

Everything is finished except one thing. When I installed the harness, engine, and ecu, I can't figure out the proper repining of the fuse block (driverside fender) to engine harness (C-2). If anyone can give some guidance, I would be grateful.

I can post VIN#'s for both vehicles if needed?
Old 05-08-2015, 06:21 PM
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It should be a straight forward unscrew and screw no?
When I did my swap I didn't have to do anything special
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