I would be concerned with using HY-TRAN in transmissions built for SAE 90 gear oil, if operating in high draft situations. Rotary mower use, probably no concern, but I would still use the heavier product; John Deere's HY-GARD. In high draft applications I would do the opposite, fill both compartments with synthetic 75W90. The 75W90 will give the necesssary gear/bearing protection and be fluid enough to pump in low temperatures. Perhaps using a sulfur-less compound 75W90 GL3 could be a good idea rather than a GL5 which contains extreme pressure lubricants containing sulfur. However I have used GL5 gear lubes in older machines with plain bronze bearings and never have had any difficulties.
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Today's Featured Article - The Engine Rebuild Kit - by Curtis Von Fange. I always liked engine rebuild kits. They have all the replacement parts for overhauling an engine without going to the store to get gaskets, special measuring tools, or miscellaneous parts. They come neatly packaged, clean and tidy. But it's important not to let that packaging lull you into a false sense of security. The appearance of matching sleeves, pistons, rings, and bearings can cause frustration and agony if not properly measured and installed in a workshop environment. Following c
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