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Since the 500 horse power motor runs 24 hours a day, 7 days a week for about 3 years at 3400rpm before the bearings wear out I would say they are bearings and not bushings.
I don't determine anything. A work order is produced saying what grease to use, how much to use and where to put it, those specifications were thought up by an engineer.
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1984 chevy suburban, custom made 6.5L diesel turbocharged with a Garrett T76 and Holset HE351VE, 22:1 compression 13psi of intercooled boost.
1989 firebird mostly stock. Aside from the 6-speed manual trans, corvette gen 5 front brakes, 1LE drive shaft, 4th Gen disc brake fbody rear end.
2011 leaf SL, white, portable 240v CHAdeMO, trailer hitch, new batt as of 2014.
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