21. When it comes to installing the dual tapered Timken bearings, Matt starts by setting up bearing endplay. He first uses a dummy shaft to find out which size shim is needed to achieve the specified 0.001-0.005 inch of bearing endplay. Matt prefers to come in at 0.003 inch. To accomplish this when setting up the dummy shaft, he aims for the high end of the specified measurement because he knows once he presses everything together, the shim will swell up and he will lose 0.002 inch leaving 0.003 inch of end play.