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There is a tab in the block opposite to cam side. There is a tab in the main cap also. But the question is what side does the tab in the main bearing cap go since you can flip the main bearing cap etheir direction. Origanlly they were opposite to cam..

Could someone tell me what direction does the main bearing tabs go on a 100cid jd
Towards the cam or not. The engine I tore down had the tabs opposite to the cam, is this corrrect

Is the 40c 2 bolt track chain the same on a 420, 430, 440. Will a 4 bolt track chain from a 440 fit onto a 40c. Will 350 bottom rollers fit onto a 40c with out modifications[/list]