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jlarson69

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About jlarson69

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  1. I just bought a 2003 Silverado SS AWD with around 140k. I would like to firm up the shifts and extend the life of the transmission. What are some possible upgrades I can make while the truck is still in the vehicle? I have this list from an older thread made by Zippy. Are these still relevent? Any good guides how to do it? Superior Products kit part number 4L60E-L, Sonnax boost valve part number 77898E-K, Corvette servo, billet 4th gear Superior Products servo, aluminum 1-2 accumlator piston, and brand new GM spacer plate with the new bonded gasket/plate kit drilled to match the kit. I also plan on using Valvoline Maxlife full synthetic ATF.
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