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ss3011 · 03-13-2018, 10:43 AM

The surface finish has a lot to do with how the clutch applies . Grooved plates , will hold oil and slow down the apply . Quickest shifts will be with flat , smooth steels .

BTW , If a steel plate has heat spots on it , then throw it away . If you measure the thickness of the steel plate at a heat spot , compared to a non heated area , it will be thicker . Those heat spots are actually showing a change of metallurgy of the steel which swells the metal . If you glass bead the steel , or sand it , it doesn't really fix the problem of a hot spotted plate . Those swelled areas will shorten the life of the clutch plate , which will be running on those high spots . Best to have a nice new flat , and smooth plate .

03-13-2018, 10:43 AM	#7
ss3011 Senior Member Join Date: Feb 2002 Location: Southeast Michigan Posts: 885 Likes: 63 Liked 221 Times in 102 Posts	Re: Automatic trans steal plates? The surface finish has a lot to do with how the clutch applies . Grooved plates , will hold oil and slow down the apply . Quickest shifts will be with flat , smooth steels . BTW , If a steel plate has heat spots on it , then throw it away . If you measure the thickness of the steel plate at a heat spot , compared to a non heated area , it will be thicker . Those heat spots are actually showing a change of metallurgy of the steel which swells the metal . If you glass bead the steel , or sand it , it doesn't really fix the problem of a hot spotted plate . Those swelled areas will shorten the life of the clutch plate , which will be running on those high spots . Best to have a nice new flat , and smooth plate .