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Replace 60hp electric shift lower unit. Everything works good in neutral and reverse, but forward is slow to engage. After looking over drawings of how it works I think the celinoid is not coming up all the way thus still letting fluid go into the reverse and neutral settings. After about 10 to 15 seconds it will shift into forward. Will draining the LU and filling it with Dexron III help it clean out anything in the LU. Figured I would flush it a couple of times and see before I take it apart?