Obs ls swap completed Ls swap steps for obs chevy in 11 minutes! *v6 to v8 w/ nv3500* Swap obs
88-98 Chevy / GMC OBS Truck - LS Swap - YouTube
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How to get your ls swapped obs gauges to work.Obs ls swap flexplate modification. 350 to 5.3 88-98 chevy / gmc obs truck.