Question:

What kind of bearings do i need?

i have a 1994 toyota pick-up with the 3.0 engine 4wd. the main bearings went out and i called to see how much they would cost and the guy asked me what kind they were. and i had no idea. anyideas?

Answer:

There are different size bearings, they vary depending upon the wear of the crankshaft and if it has been previously resurfaced. All the bearings will have just about the same cost. You will have to disassemble the engine and check the clearances with plastigauge or micrometer to know which bearing sizes you need.
If the crank has been previously turned, undersize bearings often has a designation on the back side of the shell, 20 being .020 undersize. If the bearings are in really bad shape, the crank may have been damaged and you'll either need to get it turned or see about getting one already reconditioned from an auto parts store. And like chris said, usually standard and undersize are all the same price. When you were asked what kind, were you clear that you needed main bearings or was he asking if you were talking about main or rod bearings?

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