You can also use heat to get one off. Place a thermal blanket ( foil sun shield ) around the shaft on both sides of the shaft and use a rose bud or heat gun to heat the bearing before using the drift, it will come off easier. If there are no rubber seals on the bearing you can puit it the oven and heat it before installation, when it is good and hot push it down on the shaft. Use welding gloves or good oven mitts when handling.

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Dave
1983 300D Daily Driver