The LAP is a 2.2 L — 2,198 cc (134.1 cu in)-- version of the Ecotec, based on the Gen II block with cylinder head improvements, new camshaft design, E37 engine control module, 58X crankshaft reluctor ring, dual variable valve timing, digital crank and cam sensors, individual coil - on - plug ignition, vented starter solenoid, new MAP sensor, new intake manifold seals, new oil filter element, a 32 - bit computer, and improved emissions performance. (en.wikipedia.org)
When I looked at it I could see the ABS reluctor ring was grinding on the lower ball joint. (mechanics.stackexchange.com)
click here • Nodular cast 3.622» stroke crankshaft assembly has 24X reluctor wheel installed • Used on 1998 - 2002 F - cars and 1997 - 2005 Corvettes • Balanced for 3.898» bore engines (chevroletperformanceparts.com)