While it's not a bad idea, it's not really necessary as long as you service the trans as recommended. I work in a transmission parts warehouse, and we sell hundreds of bottles of additive, both the Smart Blend and Lubegard products. Our shop mechanics put it in many vehicles, but not all of them. It mainly has friction modifiers and heat stabilizers, and in a high mileage tranny it may be a good idea. There's nothing in the two brands we carry to "swell the seals". That idea died out years ago when lip seals used to harden up and crack with heat and age. The rubber compounds and lip seal styles they use in any trannys after the mid to late 80's did away with the need for that stuff. Feel to call us at 1-800-225-6568 if you like and we can tell you a bit more, but that's the biggest part of it right there. Jeff B. Idaho Transmission
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Today's Featured Article - 12-Volt Conversions for 4-Cylinder Ford 2000 & 4000 Tractors - by Tommy Duvall. After two summers of having to park my old 1964 model 4000 gas 4 cyl. on a hill just in case the 6 volt system, for whatever reason, would not crank her, I decided to try the 12 volt conversion. After some research of convert or not, I decided to go ahead, the main reason being that this tractor was a working tractor, not a show tractor (yet). I did keep everything I replaced for the day I do want to restore her to showroom condition.
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